SODIUM MOLYBDATE (SODYUM MOLBDAT)

Sodium molybdate

CAS Number: 7631-95-0

Synonyms:

Molibdik asit disodyum tuzu.;Sodium molybdate dihydrate;monosodium molybdate(VI);Na2MoO4;sodium molybdate;sodium molybdate(VI);sodium molybdate(VI), 99Mo-labeled cpd;sodium molybdate(VI), dihydrate,sodium molybdenum oxide;Sodium molybdate;Disodium molybdate;Sodium molybdate(VI);7631-95-0;Natriummolybdat;Molybdic acid, disodium salt;Molybdate disodium;Natriummolybdat [German];Sodium molybdate (VAN);Sodium molybdate (Na2MoO4);UNII-948QAQ08I1;CCRIS 5442;Molybdate (MoO42-), disodium, (T-4)-;EINECS 231-551-7;NSC 77389;Sodium Molybdate, anhydrous;Molybdic acid (H2MoO4), disodium salt;Molybdic acid (H2MoO4) , disodium salt;disodium dioxido(dioxo)molybdenum;Molybdate (MoO42-), disodium, (beta-4)-;Molybdate (MoO42-), sodium (1:2), (T-4)-;MFCD00003486;Sodium dimolybdate;Na2MoO4;sodium orthomolybdate;Sodium Molybdate ACS;MoNa2O4;disodium tetraoxomolybdate;;sodium molybdate (anh.);AC1Q1UPT;Sodium Molybdate Anhydrous;Molybdate (MoO42#-), disodium, (T -4)-;Molybdic acid, sodium salt;AC1L1V7F;AC1N9EV1;Sodium molybdate, >=98%;sodium molybdate (anhydrous);Ddisodium Molybdate Dihydrate;Sodium Molybdate, ACS Grade;sodium dioxido(dioxo)molybdenum;disodium dioxido-dioxomolybdenum;Sodium Molybdate 35% Solution;Sodium Molybdate Solution 35%;DTXSID2052788;CHEBI:75215;10102-40-6 (dihydrate);948QAQ08I1;Sodium molybdate, anhydrous 100g;Sodium molybdate, LR, >=99.5%;AKOS015912969;RL04907;Sodium molybdate dihydrate, 98% 100g;13466-16-5;AN-21799;IN001993;IN009895;IN018732;LS-91592;Sodium Molybdate Crystals, Technical Grade;12680-49-8 (cpd with unspecified MF);FT-0655712;Sodium Molybdate Dihydrate (Technical Grade);Molybdate (MoO42-), disodium, ( beta-4)-;C15455;Molybdic acid (H2MoO4), disodium salt (8CI);Sodium molybdenum oxide, anhydrous, Mo 46.2%;I14-4724;Sodium molybdate, anhydrous, powder, -100 mesh particle size, 99.9% trace metals basis;106463-33-6;14666-91-2;Sodium molybdate dihydrate;10102-40-6;Sodium molybdate(VI) dihydrate;Disodium molybdate dihydrate;UNII-8F2SXI1704;Na2MoO4.2H2O;8F2SXI1704;Molybdic acid sodium salt dihydrate;MFCD00149170;Molybdic acid, disodium salt, dihydrate;Sodium molybdate 2 hydrate;disodium dihydrate molybdate;dipotassium dihydrate molybdate;sodium orthomolybdate dihydrate;Molybdate (MoO42-), disodium, dihydrate, (T-4)-;DTXSID7051505;CHEBI:75213;Sodium Molybdate (VI) Dihydrate;Sodium molybdenum oxide dihydrate;MolPort-019-989-728;Sodium Molybdate (VI), Dihydrate;AKOS022186490;AK144803;IN000935;disodium dioxido(dioxo)molybdenum dihydrate;ST24049280;sodium dioxido(dioxo)molybdenum–water (1/2);A800316;iaEa AAENI paragraph signthornE(R) masculineIIi;disodium bis(oxidanidyl)-bis(oxidanylidene)molybdenum dihydrate;Sodium molybdate [Wiki];Dinatriumdioxido(dioxo)molybdaen [German] [ACD/IUPAC Name];Dioxo(dioxydo)molybdne de disodium [French] [ACD/IUPAC Name];Disodium dioxido(dioxo)molybdenum [ACD/IUPAC Name];Molybdenum, diolatodioxo-, sodium salt (1:2) [ACD/Index Name];sodium molybdate (anhydrous);[7631-95-0];10102-40-6 [RN];106463-33-6 [RN];12680-49-8 [RN];14666-91-2 [RN];231-107-2 [EINECS];231-551-7 [EINECS],7631-95-0 [RN];disodium diketo-dioxido-molybdenum;disodium dioxido-dioxomolybdenum;disodium dioxido-dioxo-molybdenum;Disodium molybdate;disodium tetraoxomolybdate;disodium;dioxido(dioxo)molybdenum;EINECS 231-551-7;MFCD00003486;Molybdate (MoO42-), disodium, (T-4)-;Molybdate (MoO42-), disodium, (-4)-;Molybdate disodium;Molybdic acid (H2MoO4) , disodium salt;Molybdic acid (H2MoO4), disodium salt (8CI);MOLYBDIC ACID DISODIUM SALT;Molybdic acid, disodium salt;Na2MoO4;Natriummolybdat [German];Natriummolybdat;Natriummolybdat [German];sodium dioxido(dioxo)molybdenum;sodium molybdate (anh.);Sodium molybdate (Na2MoO4);Sodium molybdate (VAN);Sodium Molybdate 35% Solution;Sodium Molybdate ACS;Sodium Molybdate Anhydrous;Sodium Molybdate Crystals, Technical Grade;Sodium molybdate dihydrate;Sodium Molybdate Dihydrate (Technical Grade);Sodium Molybdate Solution 35%;Sodium molybdate(VI);Sodium Molybdate, ACS Grade;Sodium Molybdate, anhydrous;sodium orthomolybdate;sodiummolybdate;UNII:948QAQ08I1;UNII-948QAQ08I1;Molybdic Acid (H2moo4), Disodium Salt, Dihydrate;Disodium molybdate;Disodium tetraoxomolybdate;Molybdenum sodium oxide;Moybdic Acid (H2MoO4);Sodium tetraoxomolybdate (2-);MOLYBDATE (MoO42-), DISODIUM, DIHYDRATE, (T-4)-;SODIUM MOLYBRATE;Sodium molybdate dih;SODIUM MOLYBDATE pure;SODIUM MOLYBDATE 2H2O;SODIUM MOLYBDATE, ACS;SodiumMolybdate2H2OAcs;SodiuM Molybdate dihydra;SODIUM MOLYBDIC, DIHYDRATE;SODIUM MOLYBDATE-2-HYDRATE;SODIUM MOLYBDATE DIHYDRATE;sodium molybdate dihydrate; disodium molybdate dihydrate;Sodyum molibdat; sodyummolibdat;sodyumolibdat;Sodium molybdate;;Disodium molybdate;monosodium molybdate(VI);Na2MoO4;sodium molybdate;sodium molybdate(VI);sodium molybdate(VI), 99Mo-labeled cpd;sodium molybdate(VI), dihydrate;sodium molybdenum oxide;Molybdate disodium;Molybdic acid, disodium salt;Molybdate (MoO42-), disodium, (beta-4)-;Sodium Molybdate, anhydrous.;Molybdate (MoO42-), sodium (1:2), (T-4)-;MFCD00003486;Sodium dimolybdate;Na2MoO4;sodium orthomolybdate;Sodium Molybdate ACS;MoNa2O4;disodium tetraoxomolybdate;sodium molybdate (anh.);AC1Q1UPT;Sodium Molybdate Anhydrous;Molybdate (MoO42-), disodium, (T -4)-;Molybdic acid, sodium salt;AC1L1V7F;AC1N9EV1;Sodium molybdate;sodium molybdate (anhydrous);Ddisodium Molybdate Dihydrate;Sodium Molybdate, ACS Grade sodium dioxido(dioxo)molybdenum; Sodium molybdate, anhydrous, powder, -100 mesh particle size, 99.9 trace metals basis;Molybdic acid (H2MoO4), disodium salt (8CI);Molybdic acid (H2MoO4), disodium sal(8CI),sodyummolibdate; 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REAGENT,SODIUM MOLYBDATE DIHYDRATE, 99+%,SODIUM MOLYBDATE-2-HYDRATE TECHNICAL,SODIUM MOLYBDATE-2-HYDRATE R. G., REAG. PH. EUR.,SODIUM MOLYBDATE DIHYDRATE ACS REAGENT,SODIUM MOLYBDATE DIHYDRATE, REAGENTPLUS, 99.99%,SODIUM MOLYBDATE DIHYDRATE, DAB,Sodium molybdate(VI) dihydrat MOLYBDENUM (IV) OXIDE Sodium molybdate SODIUM PHOSPHOMOLYBDATE Sodium silicate Sodium chloride Sodium hydroxide Sodium acetate Molybdenum Sodium gluconate Sodium carbonate Molybdic acid Sodium chlorite Sodium formate Sodium bicarbonate sodium Sodium chlorate CI NO 77605;molybdic;Natriummolybdat;Sodium molybdat;SODIUM MOLYBDATE;disodiummolybdate;SodiumMolybdateGr;Sodamidemolybdate;SODIUMMOLYBDENATE;Disodium molybdate;sodiummolybdate;SILICA MONITOR REAGENT;SODIUM META-MOLYBDATE;SODIUM MOLYBDATE;SODIUM MOLYBDENUM OXIDE;(beta-4)-molybdate(moo42-disodium;Disodium molybdate;disodium,(T-4)-Molybdate;disodiummolybdate;Molybdate (MoO42-), disodium, (T-4)-;Molybdate (MoO42-), disodium, (T-4)-;molybdic;Molybdic acid (H2MoO4), disodium salt;Molybdic acid, disodium salt;molybdicacid,disodiumsalt;Molybdicaciddisodiumsalt;Natriummolybdat;Sodium molybdate (Na2MoO4);sodiummolybdate(vi;sodiummolybdate(vi);SODIUM MOLYBDATE, 98+%;Sodium molybdate;Molybdate (MoO42-), disodium, (T-4)-;Disodium molybdate;Molybdate (MoO42-), disodium, (T-4)-;Molybdic acid (H2MoO4), disodium salt;Molybdic acid, disodium salt;Natriummolybdat;Sodium molybdate (Na2MoO4);Molybdic Acid Sodium Dihydrate; Disodium Molybdate Dihydrate.;Molybdic acid, sodium salt; Molybdate (MoO42-), sodium (1:2), (T-4)-;Molybdate disodium;Sodium molybdate;Sodium molybdate(VI); Disodium molybdate;Molybdic acid, disodium salt;Natriummolybdat;(Beta-4)-molybdate(moo42-disodium;disodium,(T-4)-Molybdate;disodiummolybdate;Disodium Molybdate Dihydrate.; Molybdic Acid Sodium Dihydrate;CCRIS 5442; Sodium molybdate(VI); Disodium molybdate; Molybdic acid, disodium salt; Natriummolybdat [German]; Sodium molybdate (Na2MoO4); Molybdate (MoO42-), disodium, (T-4)-; dioxo-disodiooxy-molybdenum;Disodium Molybdate;Molybdic Acid Disodium Salt;Natriummolybdat;Sodium Molybdenum;sodium molybdate;sodiummolybdtae;SODUM MOLYBDATE;SODUMMOLYBDATE;sodum molybdate;sodummolybdate;SODIUM MOLYBDATE;SODIUMMOLYBDATE;sodyum molibdat;sodyummolibdat;SODYUM MOLBDAT;SODYUMMOLBDAT;sodyum molbdat;sodyummolbdat;sodyum molibdat;sodyummolibdat;sodyum molibdat; sodyum molipdat; sodyum molipdad; sodyum molibdad; sodium molibdat; sodium molipdat; sodium molipdad; sodium molibdad; sodum molibdat; sodum molipdat; sodum molipdad; sodum molibdad; SODUM MOLBDAT; SODUMMOLBDAT; SODUM MOLBDAD; SODIUM MOLBDAT

Sodium molybdate

Sodium Molybdate is a crystalline powder essential for the metabolism and development of plants and animals as a cofactor for enzymes. (NCI)

NCI Thesaurus (NCIt)

Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a poison. It contains a molybdate.

ChEBI

Names

IUPAC name

Sodium molybdate

Other names

Disodium molybdate

Identifiers

Sodium molybdate CAS Number

7631-95-0 ☑

10102-40-6 (dihydrate) ☒

3D model (JSmol)

Interactive image

ChEBI

CHEBI:75215 ☒

ChemSpider

55350 ☒

ECHA InfoCard 100.028.683

EC Number

231-551-7

PubChem CID

61424

RTECS number

QA5075000

CompTox Dashboard (EPA)

DTXSID2052788 Edit this at Wikidata

InChI[show]

SMILES[show]

Sodium molybdate Properties

Sodium molybdate Chemical formula

Na2MoO4

Sodium molybdate Molar mass 205.92 g/mol (anhydrous)

241.95 g/mol (dihydrate)

Sodium molybdate Appearance White powder

Sodium molybdate Density 3.78 g/cm3, solid

Sodium molybdate Melting point 687 C (1,269 F; 960 K)

Sodium molybdate Solubility in water

84 g/100 ml (100 C)

Sodium molybdate Refractive index (nD)

1.714

Sodium molybdate Hazards

Safety data sheet External MSDS

NFPA 704 (fire diamond)

NFPA 704 four-colored diamond

020

Flash point Non-flammable

Lethal dose or concentration (LD, LC):

LD50 (median dose)

4000 mg/kg (rat, oral)[1]

LC50 (median concentration)

>2080 mg/m3 (rat, 4 hr)[1]

Related compounds

Other anions

Sodium chromate

Sodium tungstate

Other cations

Ammonium molybdate

Sodium molybdate, Na2MoO4, is useful as a source of molybdenum.[2] It is often found as the dihydrate, Na2MoO42H2O.

The molybdate(VI) anion is tetrahedral. Two sodium cations coordinate with every one anion.[3]

Contents

1 History

2 Uses

3 Reactions

4 Safety

5 References

6 External links

History

Sodium molybdate was first synthesized by the method of hydration.[4] A more convenient synthesis is done by dissolving MoO3 in sodium hydroxide at 50-70 C and crystallizing the filtered product.[3] The anhydrous salt is prepared by heating to 100 C.

MoO3 + 2NaOH + H2O → Na2MoO42H2O

Uses

The agriculture industry uses 1 million pounds per year as a fertilizer. In particular, its use has been suggested for treatment of whiptail in broccoli and cauliflower in molybdenum-deficient soils.[5][6] However, care must be taken because at a level of 0.3 ppm sodium molybdate can cause copper deficiencies in animals, particularly cattle.[3]

Sodium molybdate is used in industry for corrosion inhibition, as Sodium molybdate is a non-oxidizing anodic inhibitor.[3] The addition of sodium molybdate significantly reduces the nitrite requirement of fluids inhibited with nitrite-amine, and improves the corrosion protection of carboxylate salt fluids.[7]

In industrial water treatment applications where galvanic corrosion is a potential due to bimetallic construction, the application of sodium molybdate is preferred over sodium nitrite. Sodium molybdate has the advantage in that the dosing of lower ppm`s of molybdate allow for lower conductivity of the circulating water. Sodium molybdate at levels of 50-100 ppm offer the same levels of corrosion inhibition that sodium nitrite at levels of 800+ ppm. By utilizing lower concentrations of sodium molybdate, conductivity is kept at a minimum and thus galvanic corrosion potentials are decreased.[8]

Reactions

When reacted with sodium borohydride, molybdenum is reduced to a lower valent oxide:[9]

Na2MoO4 + NaBH4 + 2H2O → NaBO2 + MoO2 + 2NaOH + 3H2

Sodium molybdate reacts with the acids of dithiophosphates:[3]

Na2MoO4 +

(R = Me, Et)

(RO)2PS2H

→ [MoO2(S2P(OR)2)2]

which further reacts to form [MoO3(S2P(OR)2)4].

Safety

Sodium molybdate is incompatible with alkali metals, most common metals and oxidizing agents. It will explode on contact with molten magnesium. It will violently react with interhalogens (e.g., bromine pentafluoride; chlorine trifluoride). Its reaction with hot sodium, potassium or lithium is incandescent.[10]

331058 Sodium molybdate dihydrate, ACS reagent, ≥99%,

M1003 Sodium molybdate dihydrate, ≥99.5%,

M1651 Sodium molybdate dihydrate, ≥99.5%, suitable for plant cell culture,

480967 Sodium molybdate dihydrate, 99.99% trace metals basis,

1.06521 Sodium molybdate dihydrate, for analysis EMSURE,

1.06524 Sodium molybdate dihydrate, EMPLURA,

8.43899 Sodium molybdate dihydrate, for synthesis,

1614421 Sodium molybdate dihydrate, United States Pharmacopeia (USP) Reference Standard,

About Sodium Molybdate

Molybdate IonSodium Molybdate is generally immediately available in most volumes. Hydrate or anhydrous forms may be purchased. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Sodium Molybdate Properties (Theoretical)

Compound Formula MoNa2O4

Molecular Weight 205.92

Appearance White powder

Melting Point N/A

Boiling Point N/A

Density 3.78 g/cm3

Solubility in H2O N/A

Exact Mass 207.864606

Monoisotopic Mass 207.864606

Customers For Sodium Molybdate Have Also Viewed

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Sodium Phosphomolybdate Hydrate

Sodium Molybdenum Oxide, Anhydrous

Sodium Molybdate Dihydrate

Ammonium Octamolybdate

Cobalt(II) Molybdenum Oxide Hydrate

Cyclopentadienylmolybdenum Tricarbonyl Sodium

Potassium Trimolybdate Nanowires

Linear Formula of Sodium Molybdate: Na2MoO4

IUPAC Name of Sodium Molybdate

disodium;dioxido(dioxo)molybdenum

Experimental Properties of Sodium Molybdate

Physical Description v

DryPowder

Liquid

OtherSolid

Melting Point of Sodium Molybdate

687C

Density of Sodium Molybdate

3.78 g/cm

Properties and Uses of Sodium Molybdate

Soluble in water. Dehydration may occur when the temperature is above 100 oC for a long time. In the production of dyes, pigments (precipitants of series pigments) are used as catalysts, as buffering agents and also as analytical reagents for alkaloids. It has a very common use in agriculture and metal finishing. For open and closed recirculation waters, it is used as a water-soluble corrosion inhibitor for machine coolants and metalworking fluids. It is tungsten intermediate. Used as a mordant. Water treatment agent is also used as weight additive and fire fighting material

Sodium Molybdate helps convert nitrate to amino acids and proteins.

Soluble powder for correcting molybdenum deficiency in plants. Can be soil or foliar applied.

Molecular weight of Sodium Molybdate

241.95

Sodium Molybdate is a source of molybdenum.

Molybdenum`s fundamental role in the human body is as a constituent of molybdoenzymes; some important molybdoenzymes are xanthine oxidase, sulphite oxidase and aldehyde oxidase. These are involved in the metabolism of sulphur amino acids and purine. By converting sulphite to sulphate, sulphite oxidase aids the metabolising of the sulphur amino acids methionine and cysteine, a process that is crucial to human health. This also helps the body reduce the harmful effects of sulphites generally.

PROPERTIES of Sodium Molybdate

Sodium molybdate is an odorless, white, hygroscopic solid (small scales or flakes). It is slightly soluble in water, insoluble in ethanol, acetone. Stable under ordinary conditions. Incompatible with alkali metals, most common metals and strong oxidizing agents.

Other uses of Sodium Molybdate

– manufacture of molybdated lubricants, pharmaceuticals, alkoloids, dyes, pigments,

– buffing compound for galvanizing,

– retardants and metal depressants,

– descaling agents, bleaching agents,

– water treatment.

Request

Sodum molybdate is a chemical used as an additive material in the treatment of irrigation water, which is used in trace amount of plants.Sodium Molybdate is a crystalline powder essential for the metabolism and development of plants and animals as a cofactor for enzymes. (NCI). Sodium molybdate is an inorganic sodium salt having molybdate as the counterion.Sodium molybdate, Na2MoO4, is useful as a source of molybdenum. It is often found as the dihydrate, Na2MoO42H2O. The molybdate(VI) anion is tetrahedral. Two sodium cations coordinate with every one anion.When reacted with sodium borohydride, molybdenum is reduced to a lower valent oxide.Sodium molybdate reacts with the acids of dithiophosphates.Sodium molybdate was first synthesized by the method of hydration.A more convenient synthesis is done by dissolving MoO3 in sodium hydroxide at 50-70 C and crystallizing the filtered product. The anhydrous salt is prepared by heating to 100 C.In industrial water treatment applications where galvanic corrosion is a potential due to bimetallic construction, the application of sodium molybdate is preferred over sodium nitrite. Sodium molybdate has the advantage in that the dosing of lower ppm`s of molybdate allow for lower conductivity of the circulating water. Sodium molybdate at levels of 50-100 ppm offer the same levels of corrosion inhibition that sodium nitrite at levels of 800+ ppm. By utilizing lower concentrations of sodium molybdate, conductivity is kept at a minimum and thus galvanic corrosion potentials are decreased.

Linear Formula of Sodium Molybdate: Na2MoO4

IUPAC Name of Sodium Molybdate

disodium;dioxido(dioxo)molybdenum

Experimental Properties of Sodium Molybdate

Physical Description v

DryPowder

Liquid

OtherSolid

Melting Point of Sodium Molybdate

687C

Density of Sodium Molybdate

3.78 g/cm

Properties and Uses of Sodium Molybdate

Sodium Molybdate helps convert nitrate to amino acids and proteins.

Soluble powder for correcting molybdenum deficiency in plants. Can be soil or foliar applied.

Molecular weight of Sodium Molybdate

241.95

Sodium Molybdate is a source of molybdenum.

PROPERTIES of Sodium Molybdate

Other uses of Sodium Molybdate

– manufacture of molybdated lubricants, pharmaceuticals, alkoloids, dyes, pigments,

– buffing compound for galvanizing,

– retardants and metal depressants,

– descaling agents, bleaching agents,

– water treatment.

Request

Applications of Sodium Molybdate

Environment, Agriculture:

The agriculture industry uses sodium molybdate as a fertilizer. It is a readily soluble source of molybdenum essential for optimum legume growth. Being the source of molybdenum, sodium molybdate is useful for curing a broccoli and cauliflower disease known as whiptail.

Biochemistry(chemicals tracer):

Sodium molybdate is used in biochemistry and medicinal chemistry to track various organic chemicals that are colorless after a chromatographical analysis, which it always stains blue. The blue color is also called molybdenum blue.

Industry (corrosion inhibitor):

It is used in as a non-oxidizing anodic inhibitor.The addition of sodium molybdate significantly reduces the nitrite requirement of fluids inhibited with nitrite-amine, and improves the corrosion protection of carboxylate salt fluids.

SODIUM MOLYBDATE INDUSTRY USES

It is used in the industry for corrosion inhibition, as it is a non-oxidizing anodic inhibitor. The addition of sodium molybdate significantly reduces the nitrite requirement of fluids inhibited with nitrite-amine, and improves the corrosion protection of carboxylate salt fluids.In industrial water treatment applications where galvanic corrosion is a potential due to bimetallic construction, the application of sodium molybdate is preferred over sodium nitrite. Sodium molybdate has the advantage in that the dosing of lower ppm on molybdate allow for lower conductivity of the circulating water.

Sodium molybdate is used as source of molybdate and it is often used in the form of Sodium molybdate dihydrate. It inactivated both the active and inactive form of the gluco corticoid receptor complex in murine models. It has been shown to reduce the emission of hydrogen sulfide from swine manure with the use of nitrites.

Applications of Sodium Molybdate

Environment, Agriculture:

Biochemistry(chemicals tracer):

Industry (corrosion inhibitor):

SODIUM MOLYBDATE INDUSTRY USES

Sodyum molibdat

Grnm : Beyaz toz

Kimyasal Ad : Molybdic acid, disodium salt, dihydrate, Sodyum molibdat

Kimyasal Forml : Na2MoO4.2H2O

Ambalaj ekli : 25 Kg. uvallarda

Kullanm Alanlar :

Molibden gei metallerinden olup saf halde gmms beyaz renkli ve ok serttir. Ergime scakl olduka yksektir. Az miktardaMolybdate de sodiumavesiyle eliin daha da sertletirilmesi salanabilir. Molibden bitkilerin beslenmesinde de nemli olup baz enzimlerde yer alr.

sveli kimyac Carl Wilhelm Scheele 1778`de, o dneme dein bir kurun cevheri ya da grafit olduu sanlan mineralin (molibdenit) bilinmeyen bir metalin slfr bileii olduunu gsterdi. sveli kimyac Peter Jacob Hjelm de 1782`de molibdeni metal halinde ayrd ve Yunanca “kuruna benzer” anlamna gelen molybdos szcnden esinlenerek adlandrd.

Sodyum molibdat wulfenit (PbMoO4) veya powellit (CaMoO4) gibi minerallerde bulunursa da, asl ticari molibden kayna molibdenittir (MoS2). Molibden dorudan madencilik yoluyla ve bakr madencilii srasnda yan rn olarak ta elde edilebilir. Molibden, cevherlerinde %0.01 den %0.5 e deien miktarlarda bulunur. Dnya molibden madenciliinin yaklak yars ABD`de (Phelps Dodge Corporation) yaplmaktadr.

Sodyum molibdat Kimyasal zellikleri bakmndan krom ve wolfram ile benzerlik gsteren molibden; yksek ergime ve kaynama noktas, yksek s dayanm, yksek s iletkenlii ve dk termal genleme gibi stn zelliklere sahiptir. Molibden 2623 C de ergir. Bu zellii ile metaller arasnda altnc sray alr. 4639 C de kaynayan molibden, soukta havadan etkilenmez, akkor halindeyken oksitlenir, nitrik ve slfrik asitlerden etkilenir, yksek scaklkta su buharn ayrtrr. Molibden`in younluu 10,28 gr/cm3 tr.

Sodyum molibdat Kullanm Alanlar

Tarm endstrisi ylda 1 milyon sterlinlik bir gbre kullanyor. zellikle, molibden eksiklii olan topraklarda brokoli ve karnabahar tohumlarnn ilenmesi iin kullanlmas nerilmitir.

Bununla birlikte, 0.3 ppm`lik bir seviyedeki sodyum molibdatn hayvanlarda, zellikle srlarda bakr eksikliklerine neden olabilecei iin dikkat edilmelidir.

Korozyon nleme iin endstride kullanlr, nk oksitleyici olmayan anodik bir inhibitrdr.

Sodyum molibdat ilavesi, nitrit-amin ile inhibe edilen svlarn nitrit ihtiyacn nemli lde azaltr ve karboksilat tuzu akkanlarnn korozyon korumasn gelitirir.

Galvanik korozyonun bimetal yapdan dolay potansiyel olduu endstriyel su artma uygulamalarnda, sodyum nitritten ok sodyum molibdat uygulamas tercih edilir.

Sodyum molibdat, daha dk ppm`lik molibdat dozajlamann dolamdaki suyun daha dk iletkenliine sahip olmas avantajna sahiptir. 50-100 ppm dzeyindeki sodyum molibdat, 800 + ppm seviyelerinde sodyum nitrit olan korozyon inhibisyonu ile ayn seviyeleri sunar.

Daha dk konsantrasyonlarda sodyum molibdat kullanarak iletkenlik minimumda tutulur ve bylece galvanik korozyon potansiyelleri azaltlr

Sodyum Molibdat

rnlerGenel KimyasallarAlkaliSodyum Molibdat

Kimyasal Ad: Sodyum Molibdat

Sodyum molibdat Forml: Na2MoO4

Sodyum molibdat Younluk: 3.78 g/cm3, kat

Sodyum molibdat Kaynama Noktas: –

Sodyum molibdat Erime Noktas: 687 C

Sodyum molibdat Molar Ktle: 205.92 g/mol

Sodyum molibdat CAS No: 7631-95-0

Sodyum molibdat CAS numaras: 7631-95-0, 10102-40-6 (dihidrat)

Sodyum molibdat PubChem: 61424

Sodyum molibdat EC Numaras: 231-551-7

Sodyum molibdat RTECS numaras: QA5075000

Sodyum molibdat Molekler forml: Na2MoO4

Sodyum molibdat Molar ktle: 205.92 g / mol (susuz) 241,95 g / mol (dihidrat)

Sodyum molibdat Grnm: Beyaz toz

Sodyum molibdat Younluk: 3,78 g/cm3, kat

Sodyum molibdat Erime noktas: 687 C, 960 K, 1269 F

Sodyum molibdat Suda znrlk: 84 g/100 ml (100 C)

Sodyum molibdat Krlma indeksi (nD): 1.714

Aklama ve kullanm alanlar: Sodyum molibdat, Na2Mo04, bir molibden kayna olarak yararl bir kimyasaldr. Genellikle dihidrat Na2MoO4 2H2O olarak bulunur. Molibdat (VI) anyonu tetrahedraldir. Her bir anyon ile iki sodyum katyonu koordine edilir.

Tarm sektr ylda 1 milyon tondan daha fazla kullanlan Sodyum Molibdat, zellikle, brokoli ve karnabahar retiminde kullanlan bir kimyasal maddedir. Oksitleyici olmayan bir anodik inhibitr olduu iin endstride korozyon inhibisyonu iin kullanlr. Sodyum molibdatn eklenmesi, nitrit-amin ile inhibe edilen svlarn nitrit gereksinimini nemli lde azaltr ve karboksilat tuzu akkanlarnn korozyon korumasn gelitirir.

Genel Bilgi

Sodyum molibdat Kimyasal forml Na2MoO4 olan Suda znebilen beyaz elmas kristali yapsnda bir kimyasal bileiktir. 100 oC`nin zerinde uzun sre kaldnda dehidrasyon meydana gelebilir. Tarmda ve metal bitirme alannda olduka yaygn kullanm alan bulur. Tungstenin ara maddesidir. Mordan olarak kullanlr.Molibden kayna olarak yararldr. Genellikle dihidrat formuyla Na2MoO4 2H2O olarak bulunmaktadr.Erimi magnezyum ile temasnda patlayc reaksiyonu gsterebilmektedir.

Sodyum molibdat retim ve Reaksiyonlar

Sodyum molibdat hidrasyon yntemiyle 50-70 C scaklkta sodyum hidroksit iinde eritilmesi ve MoO3, filtre rn olarak kristalizasyonu ile elde edilebilir.

MoO3 + 2NaOH + H2O ? Na2MoO4 2H2O

Sodyum borohidrid ile reaksiyona olduunda, daha dk bir molibden oksit olarak indirgenebilir.

Na2MoO4+ NaBH4 + 2H2O ? NaBO2 + Moo2 + 2NaOH + 3 H2

Sodyum molibdat Kullanm Alanlar

Boya

Boyalarn retiminde, pigmentlerde (seri pigmentlerin ktrcs), katalizr olarak, tamponlama ajan olarak ayrca alkaloidin analitik ayrac olarak Sodyum molibdat kullanlmaktadr.

Tarm

Sodyum molibdat Tarm sektrnde yaygn olarak kullanlmaktadr.zellikle, brokoli ve karnabahar, yetimesi iin gerekli olan molibden eksiklini karlamakta yararlanlr.

Metal

Sodyum molibdat Metal sektrnde korozyon nleyici olarak kullanlmaktadr.

Dier

Sodyum molibdat Alev geciktiriciler ,su muamele ajan ve metal kirlilii iermeyen soutma sisteminin inhibitr iin kullanlmaktadr.

Sodyum molibdat Grnm

Sodyum molibdat, beyaz kristal bir tozdur.

znrlk

Sodyum Molibdat suda znr ancak asetonda znmez.

Kullanmlar

Sodyum molibdat, tarm sanayide Oligo maddesi olarak, metal yzey ileme endstrisinde hammadde olarak ve pigment retiminde kullanlr.

Snflandrma

Gvenlik bilgi formunu (SDS) isteyin ve yerel yetkililere bavurun.

Emniyet

Request safety data sheet (SDS) and refer to points 4, 5, 6, 7, 8, 10, 13, 14, 15.

Belirtmeler

Sodyum Molibdat eitli younluklarda normal olarak mevcuttur ve orijinal ambalajnda ve gvenlik bilgi formuna (SDS) belirtilen koullar altnda depolanmaktadr.

Eanlamllar

Disodyum molibdat dihidrat

Sodyum Molibdatn Lineer Forml: Na2Mo04

IUPAC Sodyum Molibdatn Ad

disodyum; dioksido (diokso) molibden

Sodyum Molibdatn Deneysel zellikleri

Fiziksel Tanmlar v

DryPowder

OtherSolid

Sodyum Molibdatn Erime Noktas

687 C

Sodyum Molibdat Younluu

3,78 g / cm

Sodyum Molibdatn zellikleri ve Kullanmlar

Suda znr. Dehidrasyon, scaklk 100 oC`nin zerinde olduunda uzun sre ortaya kabilir. Boyalarn retiminde, pigmentler (seri pigmentlerin kelti maddeleri) katalizrler, tamponlayc ajanlar ve ayrca alkaloidler iin analitik reaktifler olarak kullanlrlar. Tarm ve metal kaplamada ok yaygn bir kullanma sahiptir. Ak ve kapal sirklasyon sular iin makine soutucular ve metal ileme svlar iin suda znr korozyon nleyicisi olarak kullanlr. Tungsten ara maddesi. Bir mordant olarak kullanlr. Su artma maddesi arlk itici ve yangnla mcadele malzemesi olarak da kullanlr

Sodyum Molibdat, nitratn amino asitlere ve proteinlere dntrlmesine yardmc olur.

Bitkilerdeki molibden eksikliini gidermek iin znr toz. Toprak veya yapraktan uygulanabilir.

Sodyum Molibdatn molekler arl

241,95

Sodyum molibdat molibden kaynadr.

Molibden`in insan vcudundaki temel rol molybdoenzimlerin bir unsuru olarak grlr; Baz nemli molibdoenzimler ksantin oksidaz, slfit oksidaz ve aldehit oksidazdr. Bunlar kkrt amino asitler ve purinin metabolizmasna karrlar. Slfit slfata dntrlerek, slfit oksidaz, insan sal iin ok nemli olan metiyonin ve sistein kkrt amino asitlerinin metabolize edilmesine yardmc olur. Bu ayn zamanda vcudun slfitlerin genel olarak zararl etkilerini azaltmasna yardmc olur.

Sodyum Molibdatn ZELLKLER

Sodyum molibdat kokusuz, beyaz, higroskopik bir katdr (kk pullar veya pullar). Suda az znr, etanolde znmez, aseton. Normal koullar altnda kararldr. Alkali metalleri, en yaygn metalleri ve gl oksitleyici ajanlarla uyumaz.

Sodyum Molibdat`n dier kullanmlar

– Molibden yalayclar, ilalar, alkoloidler, boyalar, pigmentler,

– galvanizleme iin parlatma bileimi,

– geciktiriciler ve metal depresanlar,

– kire zc ajanlar, aartma maddeleri,

– su artma.

stek

Sodyum Molibdatn Lineer Forml: Na2Mo04

IUPAC Sodyum Molibdatn Ad

disodyum; dioksido (diokso) molibden

Sodyum Molibdatn Deneysel zellikleri

Fiziksel Tanmlar v

DryPowder

OtherSolid

Sodyum Molibdatn Erime Noktas

687 C

Sodyum Molibdat Younluu

3,78 g / cm

Sodyum Molibdatn zellikleri ve Kullanmlar

Sodyum Molibdat, nitratn amino asitlere ve proteinlere dntrlmesine yardmc olur.

Bitkilerdeki molibden eksikliini gidermek iin znr toz. Toprak veya yapraktan uygulanabilir.

Sodyum Molibdatn molekler arl

241,95

Sodyum molibdat molibden kaynadr.

Sodyum Molibdatn ZELLKLER

Sodyum Molibdat`n dier kullanmlar

– Molibden yalayclar, ilalar, alkoloidler, boyalar, pigmentler,

– galvanizleme iin parlatma bileimi,

– geciktiriciler ve metal depresanlar,

– kire zc ajanlar, aartma maddeleri,

– su artma.

stek

Sodyum molibdat, az miktarda bitkilerde kullanlan sulama suyunun artmnda katk maddesi olarak kullanlan bir kimyasaldr. Sodyum Molibdat, enzimler iin bir kofaktr olarak bitki ve hayvanlarn metabolizmas ve geliiminde esas olan kristalimsi bir tozdur. (NCI). Sodyum molibdat, kar iyon olarak molibdat ieren inorganik bir sodyum tuzudur. Sodyum molybdate, Na2MoO4, molibden kayna olarak kullanldr. Genellikle dihidrat Na2MoO4 2H2O olarak bulunur. Molibdat (VI) anyonu tetrahedraldir. ki sodyum katyonu her bir anyon ile koordine edilir. Sodyum borohidrr ile reaksiyona girdiinde, molibden daha dk deerlikli bir oksite indirgenir. Sodyum molibdat, ditiyofosfat asitleri ile reaksiyona girer. Sodyum molibdat nce hidratasyon yntemi ile sentezlenir. Daha uygun bir sentez yaplr MoO3`n 50-70 C`de sodyum hidrokside eritilmesi ve filtrelenen rnn kristalletirilmesi ile hazrlanabilir. Susuz tuz, 100 C`ye stlarak hazrlanr. Galvanik korozyonun bimetal yapdan dolay potansiyel olduu endstriyel su artma uygulamalarnda, sodyum nitritten daha fazla sodyum molibdat uygulamas uygundur. Sodyum molibdat, dk ppm`lik molibdat dozajnn dolamdaki suyun daha dk iletkenliine sahip olmas avantajna sahiptir. 50-100 ppm dzeyinde sodyum molibdat, 800 ppm seviyelerinde sodyum nitrit olan korozyon inhibisyonu ile ayn seviyeleri sunar. Daha dk konsantrasyonlarda sodyum molibdat kullanarak iletkenlik minimumda tutulur ve bylece galvanik korozyon potansiyelleri azaltlr.

Sodyum Molibdatn Uygulamalar

evre, Tarm:

Tarm endstrisi, sodyum molibdat bir gbre olarak kullanyor. En iyi baklagil bymesi iin gerekli olan kolaylkla znr bir molibden kaynadr. Molibden`in kayna olan sodyum molibdat, brokoli ve karnabahar hastaln tedavi etmek iin faydaldr.

Biyokimya (kimyasal madde izleyici):

Sodyum molibdat, biyokimya ve tbbi kimyada, her zaman mavi lekelenen bir kromatografik analizden sonra renksiz eitli organik kimyasallar izlemek iin kullanlr. Mavi renge molibden mavisi denir.

Endstri (korozyon nleyici):

Oksidasyon nleyici bir anodik inhibitr olarak kullanlr. Sodyum molibdat ilavesi, nitrit-amin ile inhibe edilen akkanlarn nitrit ihtiyacn nemli lde azaltr ve karboksilat tuzu akkanlarnn korozyon korumasn gelitirir.

SODYUM MOLBDAT SANAY KULLANIMI

Korozyon nleme endstrisinde kullanlr, nk oksitleyici olmayan anodik bir inhibitrdr. Sodyum molibdat ilavesi, nitrit-amin ile inhibe edilen akkanlarn nitrit ihtiyacn nemli lde azaltr ve karboksilat tuzu akkanlarnn korozyon korumasn gelitirir. Galvanik korozyonun bimetal yapya bal olarak potansiyel olduu endstriyel su artma uygulamalarnda, sodyum molibdatn uygulanmas, Sodyum nitrit zerinde tercih edilir. Sodyum molibdat, molibdat zerindeki dk ppm dozajnn dolamdaki suyun daha dk iletkenliine sahip olmas avantajna sahiptir.

Molibdenin kayna olarak sodyum molibdat kullanlr ve sklkla Sodyum molibdat dihidrat olarak kullanlr. Fare modellerinde gluko kortikoid reseptr kompleksinin hem aktif hem de inaktif halini inaktive etti. Domuz gbresinden hidrojen slfr emisyonunu nitritler kullanarak azaltt gsterilmitir.

Sodyum Molibdatn Uygulamalar

evre, Tarm:

Biyokimya (kimyasal madde izleyici):

Sodyum molibdat, biyokimya ve tbbi kimyada, her zaman mavi lekelenen bir kromatografik analizden sonra renksiz eitli organik kimyasallar izlemek iin kullanlr. Mavi renge molibden mavisi denir.

Endstri (korozyon nleyici):

SODYUM MOLBDAT SANAY KULLANIMI

Molybdate de sodium

Identification

No CAS 7631-95-0

10102-40-6 (dihydrate)

No ECHA 100.028.683

No CE 231-551-7

SMILES

[Afficher]

InChI

[Afficher]

Apparence du molybdate de sodium poudre blanche1.

Proprits chimiques du molybdate de sodium

Formule brute Na2MoO4

Masse molaire2 205,94 0,02 g/mol

Mo 46,6 %, Na 22,33 %, O 31,08 %,

Proprits physiques

T fusion 687 C1

Solubilit dans l`eau 100 C : 840 gl-11

Masse volumique 3,78 gcm-31

Molybdate de sodium

Le molybdate de sodium est une source utile de molybdne.

MOLYBDATE(VI) DE SODIUM [archive], fiche(s) de scurit du Programme International sur la Scurit des Substances Chimiques [archive], consulte(s) le 9 mai 2009

Masse molaire calcule d`aprs Atomic weights of the elements 2007 [archive], sur www.chem.qmul.ac.uk.

Molybdate de sodium [archive] dans la base de donnes de produits chimiques Reptox de la CSST (organisme qubcois responsable de la scurit et de la sant au travail), consult le 25 avril 2009

Description

Formule molculaire brute : MoNa2O4

Principaux synonymes

Noms franais :

DISODIUM MOLYBDATE

Molybdate de sodium

MOLYBDATE DE SOUDE

MOLYBDATE(VI) DE SODIUM

MOLYBDIC ACID (H2MoO4), DISODIUM SALT

MOLYBDIC ACID, DISODIUM SALT

Sodium molybdate

SODIUM MOLYBDATE(VI)

Noms anglais :

Sodium molybdate

Utilisation et sources d`mission

Fabrication de colorants, agent de dosage analytique

Physicochemical Information

Density 2.71 g/cm3 (22 C) (for the dihydrate)

Melting Point 687 C Elimination of water of crystallisation

pH value 9 – 10 (840 g/l, H₂O, 20 C)

Bulk density 1000 – 1400 kg/m3

Solubility 840 g/l

Toxicological Information

LD 50 oral LD50 Rat 4233 mg/kg

LD 50 dermal LD50 Rat > 2000 mg/kg

Safety Information according to GHS

Libell prfr : molybdate de sodium;

Synonyme CISMeF : molibdate de sodium dihydrat; molibdate de sodium;

Libell CAS CISMeF : molybdate de disodium;

Libelles Related CAS CISMeF : oxyde de molybdne et de sodium;

Hyponyme CISMeF : molybdate de sodium dihydrat;

Codes EINECS : 231-551-7;

substance (CISMeF) : O;

medicament (CISMeF) : O;

Compos chimique inorganique hydrat de formule Na2MoO42H2O qui est une des sources principales de complmentation en molybdne.

Molybdate de sodium

Caractristiques du molybdate de sodium

Point de fusion:687 C(lit.)

Densit:3.78 g/mL at 25 C(lit.)

Index de rfraction:1.714

Sensibilit: Hygroscopique

Merck :14,8645

Stabilit: Stable. Incompatible avec les agents oxydants forts.

Les applications du molybdate de sodium et de la synthse

Proprits chimiques: Cristal de diamant blanc. Lgrement soluble dans l`eau, insoluble dans l`actone.

Application:

Molybdate de sodium

Utilis comme inhibiteur de corrosion mtallique, dtartrants, agents de blanchiment et peau et cheveux pour favoriser l`agent de protection

Utilis comme ractif analytique pour la dtermination des alcalodes, des colorants et de l`industrie pharmaceutique

Pour la fabrication d`alcalodes, l`encre, les engrais, le pigment rouge de molybdne, et l`agent de prcipitation de la lumire de pigment de prcipitation, le catalyseur, le sel de molybdne peut galement tre utilis pour faire des retardateurs de flamme et de mtaux sans pollution systme refroidisseur inhibiteur, galement utilis comme zinc, Ractifs chimiques.

Pour la prparation de sels et colorants de molybdne, de pigments, de catalyseurs, d`inhibiteurs de corrosion, etc.

En gnral le produit est disponible. Molybdne De Sodium est stock dans l`emballage d`origine et dans les conditions mentionnes sur la fiche de donnes de scurit.

Formuletr

Na2MoO4.2H20

Le molybdate de sodium, utilis plus d`un million de tonnes par an dans le secteur agricole, est une substance chimique utilise notamment dans la production de brocoli et de chou-fleur.Molybdate de sodium est utilis dans l`industrie pour l`inhibition de la corrosion carMolybdate de sodium s`agit d`un inhibiteur anodique non oxydant. L`ajout de molybdate de sodium rduit considrablement les besoins en nitrite des fluides inhibs par les nitrites-amines et amliore la protection contre la corrosion des fluides de sel de carboxylate.

Informations gnrales

Le molybdate de sodium s`agit d`un compos chimique cristallin diamant blanc soluble dans l`eau de formule chimique Na2MoO4. Une dshydratation peut survenir si elle reste plus de 100 oC.Molybdate de sodium trouve une utilisation rpandue dans l`agriculture et la finition des mtaux. C`est l`intermdiaire du tungstne.Molybdate de sodium est utilis comme mordant et est utile comme source de molybdne.Molybdate de sodium se trouve gnralement sous forme de dihydrate sous forme de Na2MoO4 2H2O. Peut prsenter une raction explosive au contact du magnsium fondu.

Production et ractions

Le molybdate de sodium peut tre obtenu par dissolution dans de l`hydroxyde de sodium 50-70 C avec une mthode d`hydratation au molybdate de sodium et une cristallisation de MoO3 comme produit filtrant.

MoO3 + 2NaOH + H2O? Na2MoO4 2H2O

Lorsqu`il ragit avec le borohydrure de sodium,Molybdate de sodium peut tre rduit sous forme d`oxyde de molybdne infrieur.

Na2MoO4 + NaBH4 + 2H2O? NaBO2 + Moo2 + 2NaOH + 3 H2

Domaines d`utilisation

peinture

Le molybdate de sodium est utilis dans la production de colorants, de pigments (prcipitateur de pigments en srie), comme catalyseur, comme agent tampon, ainsi que comme ractif analytique d`alcalode.

agriculture

Le molybdate de sodium est largement utilis dans le secteur agricole, notamment le brocoli et le chou-fleur pour combler la carence en molybdne ncessaire la culture.

mtal

Le molybdate de sodiumest utilis comme inhibiteur de corrosion dans l`industrie mtallurgique.

autre

Le molybdate de sodium est utilis pour les retardateurs de flamme, l`agent de traitement de l`eau et l`inhibiteur du systme de refroidissement sans pollution mtallique.

vue

Le molybdate de sodium est une poudre cristalline blanche.

rsolution

Le molybdate de sodium est soluble dans l`eau mais insoluble dans l`actone.

utilisations

Le molybdate de sodium est utilis comme matriau Oligo dans l`industrie agricole, comme matire premire dans l`industrie du traitement de surface des mtaux et dans la production de pigments.

classification

Demandez la fiche de donnes de scurit (FDS) et contactez les autorits locales.

scurit

Demander la fiche de donnes de scurit (FDS) et se rfrer aux points 4, 5, 6, 7, 8, 10, 13, 14, 15.

caractristiques

Le molybdate de sodium est normalement disponible en diffrentes densits et est stock dans son emballage d`origine et dans les conditions spcifies dans la fiche de donnes de scurit (FDS).

SODIUM MOLYBDATE (SODYUM MOLBDAT)

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