SODIUM STEARATE (SODYUM STEARAT)

SODIUM STEARATE (SODYUM STEARAT) /Stéarate de sodium

Synonyms:

Sodium octadecanoate, Octadecanoic acid sodium salt, Stearic acid sodium salt, CH3(CH2)16COONa, Sodium monostearate; sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt;Stéarate de sodium; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID, SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2); sodum stearate; sodyum stearat; sodyum stearate; sodyum stearat; sodum stearate; SODIUM STEARATE; Sodium octadecanoate; Octadecanoic acid; sodium salt; sodium; octadecanoate; OCTADECANOIC ACID; SODIUM SALT; SODIUM OCTADECANOATE; SODIUM SALT OCTADECANOIC ACID; BONDERLUBE 235; FLEXICHEM B; OCTADECANOIC ACID, SODIUM SALT (9CI); PRODHYGINE; SODIUM OCTADECANOATE; Natriumstearat; Octadecanoic acid sodium salt; Octadecanoic acid, sodium salt (1:1); SODIUM OCTADECANOATE; Stéarate de sodium; Stearic Acid; Sodium Salt; SODIUM N-OCTADECANOATE; Sodium stearate (a mixture of stearate and palmitate); Stearic acid 1-monoglyceride; sodiumstearate; Sodium stearate|Stearic acid sodium salt; sodyum stearat; sodyum siterat; stearat; sodyum sitearat; SODYUM STREAT; SODYUM SITEARAT; prodhygine; flexichemb; bonderlube235; Natriumstearat; SodiuM stearat; SODIUM STEARATE; stearatedesodium; SodiuM Stearate NF; SODIUMSTEARATE; PURE; STEARIC ACID SODIUM; Octadecanoic acid; sodium salt(822-16-2);SODIUM STEARATE; SODUM STEARATE; SODUM STEARAT; SODYUM STEARAT; Sodium stearate; Sodyum stearat; SODYUM STEARAT; sodyum stiarat

SODUM STEARATE

Sodium stearate

Stearic Acid Sodium Salt Structural Formula V.2.svg

Names

IUPAC name of Sodium Stearate

sodium octadecanoate

Other names of Sodium Stearate

sodium octadecanoate

Identifiers of Sodium Stearate

CAS Number of Sodium Stearate

822-16-2 ☑

3D model (JSmol)

Interactive image

ChEBI of Sodium Stearate

CHEBI:132109 ☒

ChemSpider of Sodium Stearate

12639 ☑

ECHA InfoCard of Sodium Stearate 100.011.354

EC Number of Sodium Stearate

212-490-5

PubChem CID of Sodium Stearate

2724691

UNII

QU7E2XA9TG ☑

CompTox Dashboard (EPA)

DTXSID9027318 Edit this at Wikidata

InChI[show]

SMILES[show]

Properties

Chemical formula C18H35NaO2

Molar mass of Sodium Stearate 306.466 g·mol-1

Appearance of Sodium Stearate white solid

Odor of Sodium Stearate slight, tallow-like odor

Density of Sodium Stearate 1.02 g/cm3

Melting point of Sodium Stearate 245 to 255 °C (473 to 491 °F; 518 to 528 K)

Solubility of Sodium Stearate in water soluble

Solubility of Sodium Stearate slightly soluble in ethanediol

Hazards

NFPA 704 (fire diamond)

NFPA 704 four-colored diamond

120

Flash point 176 °C (349 °F; 449 K)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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Infobox references

Use of Sodium Stearate

Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams.

Production of Sodium Stearate

Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:

(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na

Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide.

Sodium stearate

INCI name: SODUM STEARATE

Chemical name: Sodium stearate

EINECS / ELINCS number: 212-490-5

Its functions (INCI)

Cleaning agent: Helps keep a clean surface

Emulsifying agent: Promotes the formation of intimate mixtures between immiscible liquids by modifying the interfacial tension (water and oil)

Surfactant: Reduces the surface tension of cosmetics and contributes to the uniform distribution of the product during its use

Viscosity control agent: Increase or decrease the viscosity of cosmetics

This ingredient is present in 0.5% of cosmetics.

Deodorant stick (30.72%)

Solid soap (4.45%)

Sodium octadecanoate is an organic sodium salt comprising equal numbers of sodium and stearate ions. It has a role as a detergent. It contains an octadecanoate.

Preparation of seed latex

With suitable safety precautions, in suitable pressure equipment, the following latex is prepared. Since only 0.8 lb of this latex will be required in the second step of this procedure, the polymerization should be carried out on a suitably small scale.

To a solution of 804 parts of deionized, deaerated water, 8.25 parts of sodium stearate, 0.84 parts of 28% aqueous ammonia, and 0.84 parts of potassium persulfate is added, with agitation, 187 parts of vinyl chloride. The polymerization is carried out at 50°C for 25 hr. After venting, the resulting latex has an average particle size of 0.0342 μm.

(b) Emulsion polymerization with gradual addition

With suitable safety precautions, a 15-gallon autoclave, fitted with an off-center, T-shaped agitator rotating at 200 rpm, is charged with 36.7 lb of deionized and deaerated water, 0.27 lb of potassium persulfate, 0.27 lb of 28% aqueous ammonia, 0.80 lb of the above seed latex, and 0.0066 lb of sodium stearate. The autoclave is evacuated, and 9.0 lb of vinyl chloride is pumped in. The reaction mixture is maintained at 50°C. After the polymerization has been initiated, additional monomer is pumped into the autoclave at a rate of about 2.5 lb/hr and a 5.25% aqueous solution of sodium stearate (which must be maintained between 40° and 60°C to prevent gelling) is pumped in at a rate of approximately 1.2 lb/hr. Table XIV gives more precise details of the addition schedule. The addition of monomer and surfactant is completed in 20 hr. Heating is continued for an additional 3.2 hr after completion of the additions.

Sodium Stearate Properties (Theoretical)

Compound Formula of Sodium Stearate C18H35NaO2

Molecular Weight of Sodium Stearate 306.49

Appearance of Sodium Stearate White powder

Melting Point of Sodium Stearate 245-255 °C

Boiling Point of Sodium Stearate 360 °C (760 mmHg)

Density of Sodium Stearate 1.02 g/cm3

Solubility of Sodium Stearate in H2O Soluble

Heat of Vaporization of Sodium Stearate 63.84 kJ/mol

Exact Mass of Sodium Stearate 306.253 g/mol

Monoisotopic Mass of Sodium Stearate 306.253 g/mol

About Sodium Stearate

Sodium Stearate is generally immediately available in most volumes. American Elements manufactures materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.

Sodium Stearate Synonyms

Sodium octadecanoate, Octadecanoic acid sodium salt, Stearic acid sodium salt, CH3(CH2)16COONa, Sodium monostearate

PRODUCT DETAILS & INFORMATION

Sodium stearate is an octadecanoic acid sodium salt that can be derived from either animal or vegetable sources. sells both tallow-based and vegetable-based sodium stearate for use in a wide range of industrial manufacturing processes. Our NF-grade products are sold by the bag in both powder and flake forms. Place your order through our online store, or contact our office directly to request a quote or more information.

Sodium Stearate Uses

Sodium stearate is a versatile material used as an emulsifier, dispersant, gelling agent, stabilizer, binder, viscosity modifier and more. It is a major component of many soaps, cosmetics and food additives. is a leading supplier of sodium stearate for some of today’s most demanding industrial customers. Our vegetable-based and tallow-based products offer identical chemical composition and properties, making either a great choice for your application.

Product Details

sodium stearate has a two-year shelf life when stored at ambient temperatures. Our product is guaranteed to have a minimum 40 percent C18 and a minimum 90 percent C16 and C18 combined. It is completely free of genetically modified organisms (GMOs). The vegetable-derived version contains no animal products. Additional usage information can be found in the product data sheet, which is available for download on this page.

Handling and Storage Information

Sodium stearate is safe to handle and store under normal conditions. Its powder form presents an explosive hazard, and should only be handled while wearing a respirator. Gloves and other personal protective equipment should be worn at all times, as well as antistatic working shoes

Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na. About SODIUM STEARATE: Sodium salt of stearic acid, a naturally occurring fatty acid.Function(s): Surfactant – Cleansing Agent; Surfactant – Emulsifying Agent; Viscosity Increasing Agent -Aqueous; VISCOSITY CONTROLLING. Sodium stearate is a fine, white powder and the sodium salt of stearic acid, an emulsifier. It is a stabiliser and a thickener used in soaps, colour cosmetics, deodorants and in hair and skin care products. odium stearate is used to harden some of the Lush’s ‘hot pour’ soaps and solid deodorants. It helps to create a wide variety of large shapes and sizes from which we then cut fresh slices for our customers to take home. It has also the ability to make a product opaque and contribute to give soaps a creamy white foam. Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven’t been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future.Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven’t been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future. Multi-functional ingredient with thickening, gelling, and emulsifying properties. Widely used as thickener in stick products (e.g. deodorants) and co-emulsifier in cream and lotions. Add powder to the hot water phase (approx. 80oC / 176oF) and stir until homogeneous. Typical use level 0.5-20% (deodorant sticks 4 – 8%, bar soaps 5 – 20%, co-emulsifiers <1%) . For external use only. Stick cosmetics (e.g. deodorants), color cosmetics, soaps, creams, lotions, sunscreens, after sun care products. Sodium stearate is produced by saponification of vegetable oils and fats. The resulting stearic acid is then further purified by reacting it with sodium hydroxide.Does not contain animal derived components.Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. This acid is insoluble in water and soluble in ethanol. The copper substrate should be cleaned, pickled, and soaked in 10% volume HNO3 for oxide elimination. The clean sample should be soaked in ethanolic stearic acid solution (0.01 M) and 30 V DC should be applied. The anode and cathode should be made of copper. Studying the X-ray powder diffractometer (XRD) peaks proves the existence of copper stearate components resulting from the reaction of stearic acid with copper. The resulting component was studied using SEM (Figure 20). These components provide the necessary roughness and low energy of hydrophobia so the contact angle arrives at 153° and so the hysteresis of the contact angle decreases. Other researchers created a self-assembled layer on porous alumina using stearic acid. his method was performed on anodized aluminum in 0.01 volume of stearic acid solution in ethanol for 30 min without applying any potential and superhydrophobia was achieved. After having reduced the diameter as much as possible by hot rolling (smallest diameter approximately 5.5 mm), smaller diameters must be produced by cold drawing (see Golis et al., 1999; Schruff, 2004). Tension is applied to draw the hot rolled wire in several pulls down to a final required diameter between 1 and 2 mm. Calcium and sodium stearate are usually applied as a drawing lubricant. These soaps are particularly suitable at high drawing speeds because the lubricant film remains intact. Due to friction, temperatures above 150 °C and as high as 400 °C develop, which cannot be reduced by the cooling effect of the lubricant and air alone. Thus the dies are cooled with water and the wire with compressed air. Compared with earlier machines, modern dry wire drawing machines are more efficient with regard to the consumption of cooling water and lubricant as well as the filtration of stearate dust emissions. Dry wire drawing machines are machines that pull in the forward direction (Ruge and Wohlfahrt, 2001; Schimpke et al., 1977). They pull the wire as many as 14 times, i.e. a series of 14 drawing dies which are usually powered separately using rotational speed regulators. Due to the insolubility of stearic acid, it cannot be applied to sedimentation of magnesium stearate in an aqueous solution. With the addition of soda to stearic acid sodium, stearate would form, which is completely soluble in water. Magnesium stearate can be created by a reaction of magnesium sulfate, which is soluble in water, with sodium stearate, and the magnesium stearate would deposit in solution because it is insoluble in water. If magnesium chloride exists in solution other than magnesium stearate, then sodium chloride would also be produced. Of course, there is the possibility of its creation from a magnesium ion solution. The melting point of magnesium stearate is 85.5 °C, but the calcium stearate produced from the reaction of calcium oxide and stearic acid melts at 155 °C. Stearic acid was applied on the zinc oxide nanorods and the contact angle increased. The salts of the acids containing a long aliphatic chain are known as soaps. Soap pyrolysis is of interest mainly because special soaps are frequently used in the manufacturing of various plastics as slip agents (particularly Ca+ 2 and Zn+ 2 salts). The slip agents are used to avoid sticking of the polymer to the processing machines that work at temperatures of 200-300°C. Pyrolysis of soaps typically generates hydrocarbons. Sodium stearate at 300-350°C generates a mixture of decane, decene, tetradecane, pentadecane, etc. Calcium stearate also generates a mixture of hydrocarbons, but containing a considerable proportion of the corresponding ketone. Zinc stearate, a common slip agent, also generates by pyrolysis mainly hydrocarbons. Slightly soluble in water and in ethanol (96 per cent). Stable. Incompatible with strong oxidizing agents. As the sodium salt of stearic acid, sodium stearate is a highly functional material that can be applied in various fields, especially in cosmetic formulations, where it is effective to stabilize emulsions like lotions, make products thicker, more viscous. It is also widely used in the deodorant produce, in which it can serve as a major constituent of soap produced by saponification of oils and fats. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C18H35O2Na. About SODIUM STEARATE: Sodium salt of stearic acid, a naturally occurring fatty acid.Function(s): Surfactant – Cleansing Agent; Surfactant – Emulsifying Agent; Viscosity Increasing Agent -Aqueous; VISCOSITY CONTROLLING. Sodium stearate is a fine, white powder and the sodium salt of stearic acid, an emulsifier. It is a stabiliser and a thickener used in soaps, colour cosmetics, deodorants and in hair and skin care products. odium stearate is used to harden some of the Lush’s ‘hot pour’ soaps and solid deodorants. It helps to create a wide variety of large shapes and sizes from which we then cut fresh slices for our customers to take home. It has also the ability to make a product opaque and contribute to give soaps a creamy white foam. Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven’t been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future.Lush has developed a palm-free soap base to eliminate palm oil from its products, however, it is very difficult to source a sodium stearate that is completely palm free. Currently, Lush is working with suppliers to produce a good alternative and tests have already been made, but we haven’t been happy with the result. Fortunately, one of those palm-free versions has been successfully used in Orangutan Soap, which is promising for the future. Multi-functional ingredient with thickening, gelling, and emulsifying properties. Widely used as thickener in stick products (e.g. deodorants) and co-emulsifier in cream and lotions. Add powder to the hot water phase (approx. 80oC / 176oF) and stir until homogeneous. Typical use level 0.5-20% (deodorant sticks 4 – 8%, bar soaps 5 – 20%, co-emulsifiers <1%) . For external use only. Stick cosmetics (e.g. deodorants), color cosmetics, soaps, creams, lotions, sunscreens, after sun care products. Sodium stearate is produced by saponification of vegetable oils and fats. The resulting stearic acid is then further purified by reacting it with sodium hydroxide.Does not contain animal derived components.Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. This acid is insoluble in water and soluble in ethanol. The copper substrate should be cleaned, pickled, and soaked in 10% volume HNO3 for oxide elimination. The clean sample should be soaked in ethanolic stearic acid solution (0.01 M) and 30 V DC should be applied. The anode and cathode should be made of copper. Studying the X-ray powder diffractometer (XRD) peaks proves the existence of copper stearate components resulting from the reaction of stearic acid with copper. The resulting component was studied using SEM (Figure 20). These components provide the necessary roughness and low energy of hydrophobia so the contact angle arrives at 153° and so the hysteresis of the contact angle decreases. Other researchers created a self-assembled layer on porous alumina using stearic acid. his method was performed on anodized aluminum in 0.01 volume of stearic acid solution in ethanol for 30 min without applying any potential and superhydrophobia was achieved. After having reduced the diameter as much as possible by hot rolling (smallest diameter approximately 5.5 mm), smaller diameters must be produced by cold drawing (see Golis et al., 1999; Schruff, 2004). Tension is applied to draw the hot rolled wire in several pulls down to a final required diameter between 1 and 2 mm. Calcium and sodium stearate are usually applied as a drawing lubricant. These soaps are particularly suitable at high drawing speeds because the lubricant film remains intact. Due to friction, temperatures above 150 °C and as high as 400 °C develop, which cannot be reduced by the cooling effect of the lubricant and air alone. Thus the dies are cooled with water and the wire with compressed air. Compared with earlier machines, modern dry wire drawing machines are more efficient with regard to the consumption of cooling water and lubricant as well as the filtration of stearate dust emissions. Dry wire drawing machines are machines that pull in the forward direction (Ruge and Wohlfahrt, 2001; Schimpke et al., 1977). They pull the wire as many as 14 times, i.e. a series of 14 drawing dies which are usually powered separately using rotational speed regulators. Due to the insolubility of stearic acid, it cannot be applied to sedimentation of magnesium stearate in an aqueous solution. With the addition of soda to stearic acid sodium, stearate would form, which is completely soluble in water. Magnesium stearate can be created by a reaction of magnesium sulfate, which is soluble in water, with sodium stearate, and the magnesium stearate would deposit in solution because it is insoluble in water. If magnesium chloride exists in solution other than magnesium stearate, then sodium chloride would also be produced. Of course, there is the possibility of its creation from a magnesium ion solution. The melting point of magnesium stearate is 85.5 °C, but the calcium stearate produced from the reaction of calcium oxide and stearic acid melts at 155 °C. Stearic acid was applied on the zinc oxide nanorods and the contact angle increased. The salts of the acids containing a long aliphatic chain are known as soaps. Soap pyrolysis is of interest mainly because special soaps are frequently used in the manufacturing of various plastics as slip agents (particularly Ca+ 2 and Zn+ 2 salts). The slip agents are used to avoid sticking of the polymer to the processing machines that work at temperatures of 200-300°C. Pyrolysis of soaps typically generates hydrocarbons. Sodium stearate at 300-350°C generates a mixture of decane, decene, tetradecane, pentadecane, etc. Calcium stearate also generates a mixture of hydrocarbons, but containing a considerable proportion of the corresponding ketone. Zinc stearate, a common slip agent, also generates by pyrolysis mainly hydrocarbons. Slightly soluble in water and in ethanol (96 per cent). Stable. Incompatible with strong oxidizing agents. As the sodium salt of stearic acid, sodium stearate is a highly functional material that can be applied in various fields, especially in cosmetic formulations, where it is effective to stabilize emulsions like lotions, make products thicker, more viscous. Sodium Stearate is also widely used in the deodorant produce, in which it can serve as a major constituent of soap produced by saponification of oils and fats. Besides, Sodium Stearate can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Besides, it can be applied in the production of latex paints, rubbers, inks and also a component of some food additives and flavorings. Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap.Sodium Stearate is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds. Sodium Stearate is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams. Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows.

Sodium Stearate Properties (Theoretical)

Compound Formula of Sodium Stearate C18H35NaO2

Molecular Weight of Sodium Stearate 306.49

Appearance of Sodium Stearate White powder

Melting Point of Sodium Stearate 245-255 °C

Boiling Point of Sodium Stearate 360 °C (760 mmHg)

Density of Sodium Stearate 1.02 g/cm3

Solubility of Sodium Stearate in H2O Soluble

Heat of Vaporization of Sodium Stearate 63.84 kJ/mol

Exact Mass of Sodium Stearate 306.253 g/mol

Monoisotopic Mass of Sodium Stearate 306.253 g/mol

SODYUM STEARAT

sodyum stearat

Stearik asit sodyum tuzu Yapsal formül V.2.svg

simler

IUPAC ad

sodyum oktadekanoat

sodyum stearat Dier isimler

sodyum oktadekanoat

sodyum stearat Tanmlayclar

sodyum stearat CAS numaras

822-16-2 ☑

3D modeli ( JSmol )

Etkileimli görüntü

Chebi

sodyum stearat Chebi: 132109 ☒

ChemSpider

12639 ☑

AKA InfoCard 100.011.354

sodyum stearat EC Numaras 212-490-5

pubchem CID

2724691

UNII

QU7E2XA9TG ☑

InChl

InChl = 1 S / C18H36O2.Na / c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18 (19), 20; / H2 -17H2,1H3, (H, 19,20); / Q + 1 / p-1 ☑

Anahtar: RYYKJJJTJZKILX-UHFFFAOYSA-M ☑

InChl = 1 / C18H36O2.Na / c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18 (19), 20; / H2 -17H2,1H3, (H, 19,20); / Q + 1 / p-1

Anahtar: RYYKJJJTJZKILX-REWHXWOFAA

Smiles

[Na +]. [O-], C (= O) CCCCCCCCCCCCCCCCC

sodyum stearat Özellikleri

sodyum stearat Kimyasal formül

C- 18 , H 35 , Na O 2

sodyum stearat Molar kütle 306,47 g · mol -1

sodyum stearat Görünüm kat beyaz

sodyum stearat Koku hafif, donya benzeri sodyum stearat koku

sodyum stearat Younluk 1.02 g / cc 3.

sodyum stearat Erime noktas 255 ° C (473 491 ° F; 518-528 K) 245

sodyum stearat sudaki çözünürlük

çözünür

sodyum stearat Çözünürlük az çözünür etandiol

Sodyum stearat olan sodyum tuzu ve stearik asit . Bu, beyaz bir kat en yaygn sabun . Kat birçok çeit bulunan deodorant , kauçuk, lateks boyalar ve mürekkepler. Ayrca baz gda katk maddeleri ve gda aromalar bir bileenidir.

sodyum stearat kullanm

Karakteristik sabun , sodyum stearat hem de sahiptir hidrofilik ve hidrofobik srasyla parça, karboksilat ve uzun hidrokarbon zinciri. Bu iki kimyasal olarak farkl bileenlerin oluumunu uyarmak miseller ya (ya da) kirleri çözer ve misel oluturan hidrofobik compounds.The kuyruk bölümü için bir lipofilik ortam salayan, içe doru da hidrofilik kafalar mevcut ve hidrofobik (hidrokarbon) kuyruklar. Ayn zamanda, bir farmasötik endüstrisinde kullanlan yüzey aktif madde , çeitli az köpüklerin üretiminde hidrofobik bileiklerin çözünürlüünü yardm etmeye yarar.

sodyum stearat Üretim

Sodyum stearat üzerine sabun ana bileen olarak üretilir sabunlama sv ve kat yalarn. Sodyum stearat yüzdesi bileen yalarn baldr. Don ya (gibi stearik asit içerii, özellikle yüksek trigliserid yalarn çounun sadece bir kaç yüzde içerir, oysa). Stearin (stearik asit trigliserid), sodyum stearat oluumu için idealize denklemi aadaki gibidir:

(C- 18 , H 35 O 2 ) 3 C- 3 ‘H 5 + 3 NaOH → C 3 H 5 (OH) 3 + 3 ° C 18 H 35 O 2 Na

sodyum stearat ÜRÜN DETAYLARI VE BLGLER

Sodyum stearat, hayvansal veya bitkisel kaynaklardan türetilebilen bir oktadekanoik asit sodyum tuzudur. çok çeitli endüstriyel üretim süreçlerinde kullanlmak üzere hem donya bazl hem de sebze bazl sodyum stearat satmaktadr. NF dereceli ürünlerimiz poet içinde hem toz hem de pul eklinde satlmaktadr. Sipariinizi çevrimiçi maazamz araclyla verin veya fiyat teklifi veya daha fazla bilgi istemek için dorudan ofisimizle iletiime geçin.

Sodyum Stearat Kullanmlar

Sodyum stearat, emülgatör, datc, jelletirici, stabilizatör, balayc, viskozite deitirici ve daha fazlas olarak kullanlan çok yönlü bir malzemedir. Pek çok sabun, kozmetik ve gda katk maddesinin önemli bir bileenidir. günümüzün en zorlu endüstriyel müterilerinden bazlar için lider bir sodyum stearat tedarikçisidir. Bitki bazl ve donya bazl ürünlerimiz, ayn kimyasal bileim ve özellikleri sunarak uygulamanz için mükemmel bir seçimdir.

sodyum stearat Ürün Detaylar

sodyum stearat, ortam scaklklarnda saklandnda iki yllk bir raf ömrüne sahiptir. Ürünümüzün minimum yüzde 40 C18 ve minimum yüzde 90 C16 ve C18 birleik olmas garantilidir. Genetii deitirilmi organizmalardan (GDO’lar) tamamen arndrlmtr. Bitkisel türevli versiyon hiçbir hayvansal ürün içermez. Ek kullanm bilgileri, bu sayfada indirilebilen ürün veri sayfasnda bulunabilir.

Kullanm ve Saklama Bilgileri

Sodyum stearatn normal koullar altnda kullanlmas ve depolanmas güvenlidir. Toz formu, patlama tehlikesi oluturur ve yalnzca solunum cihaz takarken kullanlmaldr. Eldivenler ve dier kiisel koruyucu ekipmanlarn yan sra antistatik çalma ayakkablar her zaman giyilmelidir.

Sodyum Stearat

Sodyum stearat, bir emülifiye edici ajan, yüzey aktif ve su geçirmez ajandr. Sodyum stearat kozmetik, lateks boyalar, kauçuklarda hzlandrc olarak kullanlmaktadr. Kullanlacak olan sektör ve üretim prosesine göre istenen tane yaps ve younlukta üretilmektedir.

sodyum stearat CAS No: 822-16-2

CBNumber: CB5316865

Molecular Formula:C18H35NaO2

Chemical Properties, white to off-white powder

Sodyum stearat, stearik asidin sodyum tuzudur. Bu beyaz kat en yaygn sabundur. Birçok kat deodorant, lastik, lateks boya ve mürekkeplerde bulunur. Ayn zamanda baz gda katk maddelerinin ve gda aromalarnn bir bileenidir. Beyaz ince toz veya hava, su emme dökme kat, krem, ya kokusu. Scak su veya alkol solüsyonu, hidroliz nedeniyle sulu alkali çözünür, souk suda az çözünür.1 stearat su stcs için eklenir ve erimeleri salanr ve daha sonra sulu bir NaOH solüsyonu kartrlarak ilave edildi, 2 saat boyunca 65 ℃ stmalarnda stld, pH 8,5-8,0 olarak kontrol edilir. Kurutma ürünleri püskürtün. C17H3 5C Oon bir H2O; C17H35C N OH OOH eit olduu noktada için titre bir göstergesi olarak fenolftalein ile titre 0.5mol / L sodyum hidroksid çözeltisi, etanol, çöken sodyum stearat, stearik 10 g 100 ml% 95 etanol içinde eritildi Sabun filtrasyon ayrma. Ham ürün, saf ürün vermek üzere,% 95 etanolden yeniden kristalize edilebilir. Su veya alkol suda çözünür Seal ya serin ve kuru bir havalandrlan bir yerde koku, hava, su emme, çözüm hidroliz nedeniyle alkalidir. Serin, kuru, iyi havalandrlan bir yerde tutulmaldr. Sodyum stearat, bir emülifiye edici ajan, yüzey aktif ve su geçirmez ajandr. Sodyum stearat kozmetik, lateks boyalar, kauçuklarda hzlandrc olarak kullanlmaktadr. Kullanlacak olan sektör ve üretim prosesine göre istenen tane yaps ve younlukta üretilmektedir.Sodyum stearat, stearik asidin sodyum tuzudur. Bu beyaz kat en yaygn sabundur. Birçok kat deodorant, lastik, lateks boya ve mürekkeplerde bulunur. Ayn zamanda baz gda katk maddelerinin ve gda aromalarnn bir bileenidir. Beyaz ince toz veya hava, su emme dökme kat, krem, ya kokusu. Scak su veya alkol solüsyonu, hidroliz nedeniyle sulu alkali çözünür, souk suda az çözünür.1 stearat su stcs için eklenir ve erimeleri salanr ve daha sonra sulu bir NaOH solüsyonu kartrlarak ilave edildi, 2 saat boyunca 65 ℃ stmalarnda stld, pH 8,5-8,0 olarak kontrol edilir. Kurutma ürünleri püskürtün. C17H3 5C Oon bir H2O; C17H35C N OH OOH eit olduu noktada için titre bir göstergesi olarak fenolftalein ile titre 0.5mol / L sodyum hidroksid çözeltisi, etanol, çöken sodyum stearat, stearik 10 g 100 ml% 95 etanol içinde eritildi Sabun filtrasyon ayrma. Ham ürün, saf ürün vermek üzere,% 95 etanolden yeniden kristalize edilebilir. Su veya alkol suda çözünür Seal ya serin ve kuru bir havalandrlan bir yerde koku, hava, su emme, çözüm hidroliz nedeniyle alkalidir. Serin, kuru, iyi havalandrlan bir yerde tutulmaldr. Sodyum stearat, bir emülifiye edici ajan, yüzey aktif ve su geçirmez ajandr. Sodyum stearat kozmetik, lateks boyalar, kauçuklarda hzlandrc olarak kullanlmaktadr. Kullanlacak olan sektör ve üretim prosesine göre istenen tane yaps ve younlukta üretilmektedir.

Sodyum Stearat Teknik Özellikleri

C18O2NaH35

M = 306,46 g/mol

Sodyum Stearat Erime: 180 – 205 °C

Sodyum Stearat CAS [822-16-2]

EC 212-490-5

Sodyum Stearat SINIFI:

PARAMETRELER SPESFKASYON DEERLER

sodyum stearat Özellikleri

sodyum stearat Kimyasal formül

C- 18 , H 35 , Na O 2

sodyum stearat Molar kütle 306,47 g · mol -1

sodyum stearat Görünüm kat beyaz

sodyum stearat Koku hafif, donya benzeri sodyum stearat koku

sodyum stearat Younluk 1.02 g / cc 3.

sodyum stearat Erime noktas 255 ° C (473 491 ° F; 518-528 K) 245

sodyum stearat sudaki çözünürlük

çözünür

sodyum stearat Çözünürlük az çözünür etandiol

Sodyum Stearat Safiyet : >= 98,0 %

Sodyum Stearat yot Deeri

: <= 0,5 %

Sodyum Stearat Nem

: <= 2,5 %

Sodyum Stearat Erime Noktas

: 180 – 205 °C

Sodyum Stearat

Özellikle endüstriyel alann da olmak üzere ; Bilimsel aratrma ve gelitirme çalmalarnda kullanlr. Tercihinize göre 1, 5 ve 25 kilogramlk özel ambalajlarda size teslim edilir.

Teknik Özellikler

C18O2NaH35

M = 306.46 g/mol

Erime : 180-205 C

CAS [822-16-2]

EC 212-490-5

Sodyum stearat

INCI ad: SODYUM STEARAT

Kimyasal ad: Sodyum stearat

EINECS / ELINCS numaras: 212-490-5

levleri (INCI)

Temizlik maddesi: Yüzeyin temiz kalmasna yardmc olur

Emülsifiye edici ajan: Arayüzey gerilimini (su ve ya) deitirerek karmayan svlar arasnda yakn karmlarn oluumunu destekler.

Sürfaktan: Kozmetiklerin yüzey gerilimini düürür ve kullanm srasnda ürünün homojen dalmna katkda bulunur.

Viskozite kontrol ajan: Kozmetiklerin viskozitesini artrn veya azaltn

Bu bileen, kozmetiklerin% 0,5’inde bulunur.

Deodorant çubuu (% 30.72)

Kat sabun (% 4,45)

Sodyum Stearat Hakknda

Sodyum Stearat çou ciltte genellikle hemen bulunur. American Elements, uygun olduunda Mil Spec (askeri snf), ACS, Reaktif ve Teknik Snflar dahil olmak üzere birçok standart snfta malzeme üretir; Gda, Tarm ve laç Snflar, Optik, Yar letken ve Elektronik Snflar ve ilgili USP, EP / BP ve ASTM test standartlarna uyar. Çou malzeme yüksek ve ultra yüksek saflkta (% 99,% 99,9,% 99,99,% 99,999 ve üzeri) üretilebilir. Standart ve özel ambalaj mevcuttur. Ek teknik, aratrma ve güvenlik (SDS) bilgileri mevcuttur. Özelliklerinize göre fiyatlandrma bilgisi almak için lütfen yukardan bir fiyat teklifi isteyin.

Sodyum Stearat Eanlamllar

Sodyum oktadekanoat, Oktadekanoik asit sodyum tuzu, Stearik asit sodyum tuzu, CH3 (CH2) 16COONa, Sodyum monostearat

sodyum stearat ÜRÜN DETAYLARI VE BLGLER

Sodyum Stearat Kullanmlar

sodyum stearat Ürün Detaylar

Kullanm ve Saklama Bilgileri

Stéarate de sodium

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Stéarate de sodium

Image illustrative de l’article Stéarate de sodium

Identification

Nom UICPA octadécanoate de sodium

Synonymes

stéarate de soude

No CAS 822-16-2

No ECHA 100.011.354

No CE 212-490-5

No RTECS WI4725000

PubChem 2724691

No E E470a

SMILES

[Afficher]

InChI

[Afficher]

Apparence Poudre blanche

Propriétés chimiques

Formule brute C18H35NaO2 [Isomères]

Masse molaire1 306,4591 ± 0,0175 g/mol

C 70,55 %, H 11,51 %, Na 7,5 %, O 10,44 %,

Propriétés physiques

T° fusion 278 à 290 °C2, 283 °C3

Solubilité 140 mg·l-1 (eau, 20 °C)4

Point d’éclair 176 °C5

Limites d’explosivité dans l’air 30 g·m-34

Viscosité dynamique 30 cSt4

Cristallographie

Système cristallin α rhomboédrique, β monoclinique6

Notation Schönflies α {displaystyle D_{2h}^{9}}{displaystyle D_{2h}^{9}}, no 55 ; β {displaystyle C_{2h}^{3}}{displaystyle C_{2h}^{3}}, no 126

Précautions

SGH7

SGH07 : Toxique, irritant, sensibilisant, narcotiqueSGH09 : Danger pour le milieu aquatique

Attention

H319, H401, H411, P264, P273, P280, P391, P305+P351+P338, P337+P313, P501,

[+]

SIMDUT8

D2B : Matière toxique ayant d’autres effets toxiques

D2B,

[+]

NFPA 7048

Symbole NFPA 704.

120

Écotoxicologie

DL50 2 000 mg/kg (rat)4

CL50 5 mg/l par 4 h (aérosols, rat)4

LogP 7,149, 4,1310

Composés apparentés

Autres cations {displaystyle {ce {Li^{+}, K^{+}, Mg^{2+}, Ca^{2+}, Ba^{2+}, Cr^{3+},}}}{displaystyle {ce {Li^{+}, K^{+}, Mg^{2+}, Ca^{2+}, Ba^{2+}, Cr^{3+},}}}

{displaystyle {ce {Mn^{2+}, Co^{2+}, Ni^{2+}, Cu^{2+}, Ag^{+},}}}{displaystyle {ce {Mn^{2+}, Co^{2+}, Ni^{2+}, Cu^{2+}, Ag^{+},}}}

{displaystyle {ce {Zn^{2+}, Cd^{2+}, Al^{3+}, NH4^{+}}}}{displaystyle {ce {Zn^{2+}, Cd^{2+}, Al^{3+}, NH4^{+}}}}

Autres composés

linoléate (C18:2), oléate (C18:1), arachidate (C20:0), nonadécanoate (C19:0); margarate (C17:0) palmitate (C16:0), myristate (C14:0), laurate (C12:0)

Unités du SI et CNTP, sauf indication contraire.

modifier Consultez la documentation du modèle

Le stéarate de sodium ou octadécanoate de sodium est le sel de sodium de l’acide stéarique. Il est obtenu par hydrolyse en milieu basique ou saponification de la stéarine. À température ambiante, c’est une poudre blanche qui est un des composés des savons durs11. C’est une substance utilisée pour ses propriétés tensioactives. Outre les savons, elle est présente dans des préparations à destination de l’industrie chimique, pharmaceutique ou agroalimentaire. On la trouve dans de nombreux produits finis comme des bâtons de colle, sticks déodorants, crèmes à raser, préparations pour gâteaux ou crèmes glacées.

Propriétés

Le stéarate de sodium anhydre subit des changements de phase lorsqu’il est chauffé. En particulier, à partir de 130 °C il devient translucide et souple. Passé 200 °C, il est partiellement transparent et le devient totalement à partir de 265 °C2. Son point de fusion est compris entre 278 et 290 °C2.

Propriétés spectroscopiques

Spectroscopie infrarouge

La spectroscopie infrarouge du stéarate de sodium montre plusieurs raies caractéristiques12,13 :

de 2 800 à 3 000 cm-1, raies intenses correspondant aux modes de vibrations relatifs aux élongations des méthyles et méthylènes de la chaîne aliphatique ;

à 1 556 cm-1, vibration d’élongation asymétrique du groupe carboxylate {displaystyle {ce {COO-}}}{displaystyle {ce {COO-}}} ;

à 1 420 cm-1, vibration d’élongation symétrique du groupe carboxylate {displaystyle {ce {COO-}}}{displaystyle {ce {COO-}}}.

Spectroscopie Raman

La spectroscopie Raman à λ=514,5 nm13 du stéarate de sodium montre :

à 2 840 cm-1 et 2 875 cm-1, des bandes intenses correspondant aux vibrations de valence symétrique et asymétrique des groupes méthylène {displaystyle {ce {CH2}}}{displaystyle {ce {CH2}}} ;

à 2 918 cm-1, bande moyenne des vibrations d’élongation symétrique du méthyle terminal {displaystyle {ce {CH3}}}{displaystyle {ce {CH3}}} et 2 953 cm-1 pour l’élongation asymétrique ;

à 1 437 cm-1, bande moyenne des vibrations de déformation des groupes {displaystyle {ce {CH2}}}{displaystyle {ce {CH2}}},{displaystyle {ce {C=O}}}{displaystyle {ce {C=O}}}, {displaystyle {ce {C-O}}}{displaystyle {ce {C-O}}} et élongation de {displaystyle {ce {C-O}}}{displaystyle {ce {C-O}}}.

Solubilité

Le stéarate de sodium est peu soluble dans l’eau à température ambiante. Sa solubilité augmente en présence d’alcool. Elle diminue en présence d’acide, de sel ou d’alcalino-terreux ({displaystyle {ce {Ca^{2+}}}}{displaystyle {ce {Ca^{2+}}}}, {displaystyle {ce {Mg^{2+}}}}{displaystyle {ce {Mg^{2+}}}})14.

Propriétés détergentes

Le stéarate de sodium est une substance amphiphile composée d’un groupe ionique carboxylate de sodium {displaystyle {ce {-CO2^{-}Na^{+}}}}{displaystyle {ce {-CO2^{-}Na^{+}}}} et d’un groupe hydrophobe CH3(CH2)n avec n=16.

C’est un tensioactif et il abaisse la tension superficielle de l’eau.

Sa température de Krafft est comprise entre 50 et 67 °C15,16.

La valeur HLB (hypophile-lipophile balance) est de 17,617.

Comme les autres savons, il perd sa capacité détergente nettoyante dans une eau dure ou acidifiée18.

Utilisations

Surfactif anionique19 (agent de surface), il est employé comme excipient en galénique20 pour ses propriétés : solubilisante, émulsionnante, mouillante ou moussante.

Dans l’industrie chimique, le stéarate de sodium est utilisé pour l’enrobage du carbonate de calcium21,22.

Dans les activités de tréfilage, des bains de stéarate de sodium sont mis en place dans des lignes de décapage/lubrification chimique23,24,25.

Dans l’agroalimentaire, c’est un additif qui peut jouer le rôle d’émulsifiant, de stabilisant, d’épaississant ou encore de gélifiant26,27. Il est répertorié sous le numéro E470a en tant que sel de sodium d’acide gras.

On le trouve également dans les déodorants solides, les caoutchoucs, les peintures au latex et des encres.

Dans les années 1930, des combustibles colloïdaux ont été développés. Il s’agissait de suspensions de combustibles solides (charbon) finement divisés et dispersés dans de l’huile. Pour éviter la décantation des particules solides, l’état de dispersion était stabilisé par ajout de stéarate de sodium28,29.

Le stéarate de sodium est un produit intermédiaire lors de la fabrication d’autres stéarates (stéarate de magnésium, stéarate de calcium, stéarate d’aluminium ou stéarate de zinc) par le procédé de précipitation ou double décomposition :

{displaystyle {ce {C17H35COOH + NaOH -> C17H35COO^-Na^+ + H2O}}}{displaystyle {ce {C17H35COOH + NaOH -> C17H35COO^-Na^+ + H2O}}}

{displaystyle {ce {2C17H35CO2^-Na^+ + M^{2+}Y2^- -> (C17H35COO^-)2M^{2+}{}+ 2Na^+Y^-}}}{displaystyle {ce {2C17H35CO2^-Na^+ + M^{2+}Y2^- -> (C17H35COO^-)2M^{2+}{}+ 2Na^+Y^-}}} (avec Y = Cl-, ½SO42-, etc., et M = Zn, Ca)

Production

Synthèse de laboratoire du stéarate de sodium anhydre

L’équation de la réaction est la suivante30 : {displaystyle {ce {2C17H35CO2H + Na -> 2C17H35CO2^-Na^+ + H2}}}{displaystyle {ce {2C17H35CO2H + Na -> 2C17H35CO2^-Na^+ + H2}}}

Par saponification

Traditionnellement31 le stéarate de sodium était obtenu par hydrolyse alcaline du tristéarate du glycérol (ou stéarine) issu du suif de bœuf31 ou de mouton32.

L’équation de la réaction de saponification est la suivante : {displaystyle {ce {(C18H35O2)3C3H5 + 3NaOH -> 3C17H35CO2^-Na^+ + C3H5(OH)3}}}{displaystyle {ce {(C18H35O2)3C3H5 + 3NaOH -> 3C17H35CO2^-Na^+ + C3H5(OH)3}}}

Cette réaction est exothermique.

Double décomposition

L’équation de la réaction de double décomposition est la suivante33 : {displaystyle {ce {C17H35CO2^-K^+ + NaCl -> C17H35CO2^-Na^+ + KCl}}}{displaystyle {ce {C17H35CO2^-K^+ + NaCl -> C17H35CO2^-Na^+ + KCl}}}

Procédés Ittner et Twitchell

Le stéarate de sodium est obtenu en deux étapes. La première consiste à produire l’acide stéarique, à partir des huiles végétales ou des graisses animales, par chauffage à la vapeur d’eau en présence de catalyseur (procédé Ernst Twitchell : acide sulfonique d’alkylbenzène et acide sulfurique dilué ; procédé Martin Ittner (en) : oxyde de zinc ou de calcium).

{displaystyle {ce {(C18H35O2)3C3H5 + 3H2O -> 3C17H35CO2H + C3H5(OH)3}}}{displaystyle {ce {(C18H35O2)3C3H5 + 3H2O -> 3C17H35CO2H + C3H5(OH)3}}}

L’acide gras obtenu est ensuite séparé du sous-produit : le glycérol par neutralisation avec une solution d’hydroxyde de sodium34,35 : {displaystyle {ce {C17H35COOH + NaOH -> C17H35COO^-Na^+ + H2O}}}{displaystyle {ce {C17H35COOH + NaOH -> C17H35COO^-Na^+ + H2O}}}

STEARATE DE SODUM

N° CAS du stéarate de sodium: 822-16-2

“Bien” dans toutes les catégories.

Nom INCI du stéarate de sodium : SODIUM STEARATE

Nom chimique du stéarate de sodium : Sodium stearate

N° EINECS/ELINCS du stéarate de sodium : 212-490-5

Ses fonctions (INCI)

Agent nettoyant du stéarate de sodium : Aide à garder une surface propre

Agent émulsifiant du stéarate de sodium: Favorise la formation de mélanges intimes entre des liquides non miscibles en modifiant la tension interfaciale (eau et huile)

Tensioactif du stéarate de sodium : Réduit la tension superficielle des cosmétiques et contribue à la répartition uniforme du produit lors de son utilisation

Agent de contrôle de la viscosité : Augmente ou diminue la viscosité des cosmétiques

Le stéarate de sodium est présent dans 0.5% des cosmétiques.

Déodorant stick (30,72%)

Savon solide (4,45%)

Le stéarate de sodium est une poudre blanche et fine ; il s’agit du sel de sodium de l’acide stéarique, un émulsifiant. Le stérate de sodium sert à stabiliser et à épaissir les mélanges de nos savons, nos déodorants et nos produits pour la peau ou les cheveux.

De quoi s’agit-il?

Le stéarate de sodium est un matériau du savon végétal issu des huiles de noix de coco et de palme. On le qualifie souvent de sel de sodium provenant de l’acide stéarique, un acide gras naturel.

À quoi ça sert?

Grâce à sa consistance, le stéarate de sodium est un composant majeur de la plupart des savons végétaux. Dans un déodorant, comme ceux que nous fabriquons, il a l’unique capacité de former, avec d’autres matériaux comme le propylèneglycol végétal, la glycérine et le propanédiol, une structure pour créer un bâton solide.

Comment c’est fait?

Notre modèle de gérance nous guide dans le choix de nos ingrédients qui ont été transformés en respectant notre philosophie en matière de santé humaine et environnementale.

Les acides stéariques peuvent provenir de plusieurs sources. tire son acide stéarique des huiles de noix de coco et de palme. Ces huiles sont divisées en glycérine et en acides gras, l’un d’entre eux étant l’acide stéarique. L’acide stéarique est isolé, puis mélangé à l’hydroxyde de sodium dans un procédé de saponification pour produire un ingrédient du savon appelé stéarate de sodium.

Quels sont les substituts?

Alternativement, nous proposons aussi un déodorant en bâton à la cire naturelle. Ainsi, nos consommateurs peuvent choisir des options qui respectent notre modèle de gérance.

Est-ce le bon choix pour moi?

Le stéarate de sodium est considéré depuis longtemps comme un ingrédient sans danger pour les produits de soins personnels.

reconnaît que toutes les personnes sont différentes et que, même en utilisant des ingrédients naturellement dérivés, certaines pourraient développer une réaction allergique qui lui est propre. Comme avec tout produit, cessez l’utilisation en cas d’inconfort ou d’autres signes que le produit pourrait ne pas être approprié pour la chimie de votre corps.

Description

Nous utilisons du stéarate de sodium pour faire durcir certains de nos savons et déodorants solides. Cet ingrédient permet de créer des produits de différentes formes, que nous proposons frais et à la coupe. Le stéarate de sodium permet également de rendre les produits opaques, et prodigue aux savons leur mousse blanche et crémeuse.

Aperçu

Bienfaits

Stabilise et épaissit

Nom INCI : Sodium stearate

Nom chimique : Sodium stearate

N° EINECS/ELINCS : 212-490-5

Ses fonctions (INCI)

Agent nettoyant : Aide à garder une surface propre

Agent émulsifiant : Favorise la formation de mélanges intimes entre des liquides non miscibles en modifiant la tension interfaciale (eau et huile)

Tensioactif : Réduit la tension superficielle des cosmétiques et contribue à la répartition uniforme du produit lors de son utilisation

Agent de contrôle de la viscosité : Augmente ou diminue la viscosité des cosmétiques

Sodium stearate est présent dans 0.5% des cosmétiques.

Déodorant stick (30,72%)

Savon solide (4,45%)

À propos du stéarate de sodium

Le stéarate de sodium est généralement immédiatement disponible dans la plupart des volumes. American Elements fabrique des matériaux selon de nombreuses qualités standard, le cas échéant, y compris Mil Spec (qualité militaire), ACS, réactifs et grades techniques; Grades alimentaires, agricoles et pharmaceutiques, qualités optiques, semi-conducteurs et électroniques, et suit les normes de test USP, EP / BP et ASTM applicables. La plupart des matériaux peuvent être produits sous des formes de pureté élevée et ultra élevée (99%, 99,9%, 99,99%, 99,999% et plus). Un emballage standard et personnalisé est disponible. Des informations techniques, de recherche et de sécurité (FDS) supplémentaires sont disponibles. Veuillez demander un devis ci-dessus pour recevoir des informations sur les prix en fonction de vos spécifications.

Synonymes de stéarate de sodium

Octadécanoate de sodium, sel de sodium d’acide octadécanoïque, sel de sodium d’acide stéarique, CH3 (CH2) 16COONa, monostéarate de sodium

DÉTAILS ET INFORMATIONS SUR LE PRODUIT

Le stéarate de sodium est un sel de sodium d’acide octadécanoïque qui peut être dérivé de sources animales ou végétales. vend du stéarate de sodium à la fois à base de suif et végétal pour une utilisation dans une large gamme de procédés de fabrication industriels. Nos produits de qualité NF sont vendus au sac sous forme de poudre et de flocons. Passez votre commande via notre boutique en ligne ou contactez directement notre bureau pour demander un devis ou plus d’informations.

Utilisations du stéarate de sodium

Le stéarate de sodium est un matériau polyvalent utilisé comme émulsifiant, dispersant, gélifiant, stabilisant, liant, modificateur de viscosité et plus encore. C’est un composant majeur de nombreux savons, cosmétiques et additifs alimentaires. est l’un des principaux fournisseurs de stéarate de sodium pour certains des clients industriels les plus exigeants d’aujourd’hui. Nos produits à base végétale et à base de suif offrent une composition chimique et des propriétés identiques, ce qui en fait un excellent choix pour votre application.

détails du produit

le stéarate de sodium a une durée de conservation de deux ans lorsqu’il est conservé à température ambiante. Notre produit est garanti d’avoir un minimum de 40 pour cent de C18 et un minimum de 90 pour cent de C16 et C18 combinés. Il est totalement exempt d’organismes génétiquement modifiés (OGM). La version d’origine végétale ne contient aucun produit animal. Des informations d’utilisation supplémentaires peuvent être trouvées dans la fiche technique du produit, qui peut être téléchargée sur cette page.

Informations sur la manipulation et le stockage

Le stéarate de sodium est sûr à manipuler et à stocker dans des conditions normales. Sa forme de poudre présente un risque d’explosion et ne doit être manipulée qu’avec un respirateur. Des gants et autres équipements de protection individuelle doivent être portés en tout temps, ainsi que des chaussures de travail antistatiques

SODIUM STEARATE (SODYUM STEARAT)

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SODIUM STEARATE (SODYUM STEARAT)

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