METHANESULFONIC ACID (METANSLFONK AST)
METHANESULFONIC ACID (METANSÜLFONK AST)
CAS No. : 75-75-2
EC No. : 200-898-6
Synonyms:
METHANESULFONIC ACID; 75-75-2; Methylsulfonic acid; Methanesulphonic acid; Mesylate; Methanesulfonicacid; Kyselina methansulfonova; Mesylic acid; Methansulfonsaeure; NSC 3718; CCRIS 2783; UNII-12EH9M7279; Kyselina methansulfonova [Czech]; HSDB 5004; EINECS 200-898-6; CH3SO3H; MFCD00007518; BRN 1446024; METHANE SULFONIC ACID; Sulfomethane; AI3-28532; CHEBI:27376; Methanesulfonic acid, ammonium salt (1:1); 12EH9M7279; 22515-76-0; Methanesulfonic acid, 98%; Methanesulfonic acid, 99%, extra pure; Methanesulfonic acid, ammonium salt; Methanesulfonic acid, pure, 70% solution in water; Mesic acid; metanesulfonic acid; methansulfonic acid; MsOH; methansulphonic acid; methylsulphonic acid; 03S; methyl sulfonic acid; methyl-sulfonic acid; methane-sulfonic acid; MeSO3H; methane sulphonic acid; methanesulphonic-acid-; NSC 166292; PubChem2058; PubChem11149; LACTIC ACID(DL); AI3-62914; ammonium methanesulphonate; CH3SO2OH; H3CSO3H; DSSTox_CID_6422; WLN: WSQ1; EC 200-898-6; DSSTox_RID_78109; Methane Sulfonic Acid 99%; DSSTox_GSID_26422; 4-04-00-00010 (Beilstein Handbook Reference); KSC377E0F; Methanesulfonic acid, 99.5%; Methanesulfonic acid, anhydrous; $l^{1}-oxidanylsulfonylmethane; [DID-no:2616]; CHEMBL3039600; DTXSID4026422; CTK2H7202; KS-00000WAQ; Methanesulfonic acid, HPLC grade; NSC3718; Methanesulfonic acid, >=99.0%; [C]S(O)(=O)=O; NSC-3718; Tox21_201073; ANW-42735; STL264182; Methane Sulfonic Acid, 70% Solution; AKOS009146947; MCULE-6572487779; CAS-75-75-2; NCGC00248914-01; NCGC00258626-01; BP-12823; LS-90299; DB-075013; FT-0628287; M0093; M2059; NS00004472; C11145; Methanesulfonic acid, >=99.0%, ReagentPlus(R); Methanesulfonic acid, for HPLC, >=99.5% (T); Methanesulfonic acid solution, 70 wt. % in H2O; Q414168; J-521696; Methanesulfonic acid, Vetec(TM) reagent grade, 98%; F1908-0093; Z940713430; Methanesulfonic acid solution, 4 M (with 0.2% (w/v) tryptamine); Methanesulfonic acid concentrate, 0.1 M CH3SO3H in water (0.1N), eluent concentrate for IC; Methanesulfonic acid, PharmaGrade, Manufactured under appropriate GMP controls for pharma or biopharmaceutical production
EN
Methanesulfonic Acid IUPAC Name methanesulfonic acid
Methanesulfonic Acid InChI 1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
Methanesulfonic Acid InChI Key AFVFQIVMOAPDHO-UHFFFAOYSA-N
Methanesulfonic Acid Canonical SMILES CS(=O)(=O)O
Methanesulfonic Acid Molecular Formula CH4O3S
Methanesulfonic Acid CAS 75-75-2
Methanesulfonic Acid Related CAS 22515-76-0
Methanesulfonic Acid Deprecated CAS 115449-98-4, 125756-91-4
Methanesulfonic Acid European Community (EC) Number 200-898-6
Methanesulfonic Acid NSC Number 3718
Methanesulfonic Acid UN Number 2585
Methanesulfonic Acid UNII 12EH9M7279
Methanesulfonic Acid DSSTox Substance ID DTXSID4026422
Methanesulfonic Acid Physical Description Liquid
Methanesulfonic Acid Color/Form Solid
Methanesulfonic Acid Boiling Point 167 °C at 10 mm Hg
Methanesulfonic Acid Melting Point 20.0 °C
Methanesulfonic Acid Flash Point 189 °C closed cup
Methanesulfonic Acid Solubility 10.41 M
Methanesulfonic Acid Density 1.4812 g/cu cm at 18 °C
Methanesulfonic Acid Vapor Pressure 4.28e-04 mmHg
Methanesulfonic Acid LogP log Kow = -2.38 (est)
Methanesulfonic Acid Stability/Shelf Life Thermally stable at moderately elevated temperatures.
Methanesulfonic Acid Autoignition Temperature 500 °C at 1013 mm Hg
Methanesulfonic Acid Decomposition Hazardous decomposition products formed under fire conditions: Carbon oxides, Sulfur oxides
Methanesulfonic Acid Corrosivity Corrosive to iron, steel, brass, copper, lead
Methanesulfonic Acid Surface Tension 5.0584X10-2 N/m at melting point
Methanesulfonic Acid Refractive Index Index of refraction: 1.4317 at 18 °C
Methanesulfonic Acid Dissociation Constants pKa = -1.86
Methanesulfonic Acid Other Experimental Properties Not hydrolyzed by boiling water or hot aqueous alkali
Methanesulfonic Acid Molecular Weight 96.11 g/mol
Methanesulfonic Acid XLogP3-AA -0.9
Methanesulfonic Acid Hydrogen Bond Donor Count 1
Methanesulfonic Acid Hydrogen Bond Acceptor Count 3
Methanesulfonic Acid Rotatable Bond Count 0
Methanesulfonic Acid Exact Mass 95.988115 g/mol
Methanesulfonic Acid Monoisotopic Mass 95.988115 g/mol
Methanesulfonic Acid Topological Polar Surface Area 62.8 Ų
Methanesulfonic Acid Heavy Atom Count 5
Methanesulfonic Acid Formal Charge 0
Methanesulfonic Acid Complexity 92.6
Methanesulfonic Acid Isotope Atom Count 0
Methanesulfonic Acid Defined Atom Stereocenter Count 0
Methanesulfonic Acid Undefined Atom Stereocenter Count 0
Methanesulfonic Acid Defined Bond Stereocenter Count 0
Methanesulfonic Acid Undefined Bond Stereocenter Count 0
Methanesulfonic Acid Covalently-Bonded Unit Count 1
Methanesulfonic Acid Compound Is Canonicalized Yes
Methanesulfonic Acid is an alkanesulfonic acid in which the alkyl group directly linked to the sulfo functionality is methyl. It has a role as an Escherichia coli metabolite. It is an alkanesulfonic acid and a one-carbon compound. It is a conjugate acid of a methanesulfonate.Marinosulfonomonas methylotropha strain TR3 is a marine methylotroph that uses Methanesulfonic Acid (MSA) as a sole carbon and energy source.Methanesulfonic Acid and other lower alkanesulfonic acids are useful for plating of lead, nickel, cadmium, silver, and zinc. It also finds use in plating of tin, copper, lead, and other metals and is used in printed circuit board manufacture.Methanesulfonic Acid … finds use in preparing biological and agricultural chemicals, textile treatment chemicals, and for plastics and polymers.Methanesulfonic Acid finds use in ion-exchange resin regeneration because of the high solubility of many metal salts in aqueous solutions.Methanesulfonic Acid (MSA) soln – containing 50 mg MSA (Eastman Kodak Co No 6320)/mL chloroform; prepn fresh daily.Methanesulfonic Acid is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and/or 1994. The HPV list is based on the 1990 Inventory Update Rule.Production volume for non-confidential chemicals reported under the 2006 Inventory Update Rule. Chemical: Methanesulfonic Acid. Aggreated National Production Volume: 1 to <10 million pounds.Methanesulfonic Acid is too powerful a catalyst for O-alkylation with the vinyl ether, causing explosive polymerisation of the latter on the multimol scale. Dichloroacetic acid is a satisfactory catalyst on the 3 g mol scale.Methanesulfonic Acid is shipped in tank trucks and in plastic 55-gal drums or smaller containers with polyethylene inserts.Both anhydrous and 70% Methanesulfonic Acid were corrosive to mouse skin by the anesthetized tail method after a 1 hr exposure.Methanesulfonic Acid was corrosive to rabbit eyes and caused immediate pain and necrosis of all ocular tissue.No adverse effects on body weight, liver, or kidney weights or gross pathology were observed in rats fed Methanesulfonic Acid or its potassium salt in the diet for 1 wk at dosage levels of up to 2000 mg/kg.Methanesulfonic Acid’s production and use as a catalyst in esterification, alkylation, olefin polymerization, and peroxidation reactions and as a solvent may result in its release to the environment through various waste streams. Methanesulfonic Acid is produced by atmospheric hydrolysis of dimethyl sulfoxide, which itself is produced from naturally-derived dimethyl sulfide. If released to air, a vapor pressure of 4.28X10-4 mm Hg at 25 °C indicates Methanesulfonic Acid will exist solely as a vapor. Vapor-phase Methanesulfonic Acid will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 58 days. Methanesulfonic Acid does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight. If released to soil, Methanesulfonic Acid is expected to have very high mobility based upon an estimated Koc of 1. The pKa of Methanesulfonic Acid is -1.86, indicating that this compound will exist almost entirely in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts. Volatilization from moist soil is not expected because the acid exists as an anion and anions do not volatilize. Utilizing the Japanese MITI test, 100% of the Theoretical BOD was reached in four weeks indicating that biodegradation is an important environmental fate process. If released into water, Methanesulfonic Acid is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. The pKa indicates Methanesulfonic Acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process. Methanesulfonic Acid is miscible with water and therefore bioconcentration in aquatic organisms is low. Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions. Occupational exposure to Methanesulfonic Acid may occur through inhalation and dermal contact with this compound at workplaces where Methanesulfonic Acid is produced or used. Monitoring data indicate that the general population may be exposed to methansulfonic acid via inhalation of ambient air; Methanesulfonic Acid is widely detected in marine air. (SRC)Methanesulfonic Acid is produced by atmospheric hydrolysis of dimethyl sulfoxide(1), which itself is produced from the atmospheric photochemical oxidation of dimethyl sulfide, which comes from marine algae and salt marsh plants(2).Methanesulfonic Acid’s production and use as a catalyst in esterification, alkylation, olefin polymerization, peroxidation reactions(1) and as a solvent(2) may result in its release to the environment through various waste streams(SRC).Based on a classification scheme(1), an estimated Koc value of 1(SRC), determined from a structure estimation method(2), indicates that Methanesulfonic Acid is expected to have very mobility in soil(SRC). The pKa of Methanesulfonic Acid is -1.86(3), indicating that this compound will exist almost entirely in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4). Volatilization from moist soil is not expected because the acid exists as an anion and anions do not volatilize. Methanesulfonic Acid is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 4.28X10-4 mm Hg at 25 °C(5). Utilizing the Japanese MITI test, 100% of the Theoretical BOD was reached in four weeks(6) indicating that biodegradation is an important environmental fate process in soil(SRC).Based on a classification scheme(1), an estimated Koc value of 1(SRC), determined from a structure estimation method(2), indicates that Methanesulfonic Acid is not expected to adsorb to suspended solids and sediment(SRC). A pKa of -1.86(3) indicates Methanesulfonic Acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process(4). Methanesulfonic Acid is miscible with water(5) and therefore bioconcentration in aquatic organisms is low(SRC). Utilizing the Japanese MITI test, 100% of the Theoretical BOD was reached in four weeks(6) indicating that biodegradation is an important environmental fate process in water(SRC).According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), Methanesulfonic Acid, which has a measured vapor pressure of 4.28X10-4 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase Methanesulfonic Acid is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 58 days(SRC), calculated from its rate constant of 2.8X10-13 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Methanesulfonic Acid does not contain chromophores that absorb at wavelengths >290 nm(4) and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).Methanesulfonic Acid, present at 100 mg/L, reached 100% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(1).The rate constant for the vapor-phase reaction of Methanesulfonic Acid with photochemically-produced hydroxyl radicals has been estimated as 2.8X10-13 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 58 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). Methanesulfonic Acid is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(2). Methanesulfonic Acid does not contain chromophores that absorb at wavelengths >290 nm(2) and therefore is not expected to direct photolysis by sunlight(SRC).Methanesulfonic Acid is miscible with water(1) and therefore bioconcentration in aquatic organisms is low(SRC).Using a structure estimation method based on molecular connectivity indices(1), the Koc of Methanesulfonic Acid can be estimated to be 1(SRC). According to a classification scheme(2), this estimated Koc value suggests that Methanesulfonic Acid is expected to have very high mobility in soil. The pKa of Methanesulfonic Acid is -1.86(3), indicating that this compound will almost entirely exist in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4).A pKa of -1.86(1) indicates Methanesulfonic Acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces or moist soil surfaces is not expected to be an important fate process(2). Methanesulfonic Acid is not expected to volatilize from dry soil surfaces(SRC) based upon its vapor pressure of 4.28X10-4 mm Hg(3).Methanesulfonic Acid had sub-micrometer-aerosol concentration peaks of approximately 0.47 and 0.4 mol/cu m in February and December, respectively, in the atmosphere at Cape Grim off of Australia in 1989(1). Methanesulfonic Acid was found at the highest levels in atmospheric samples collected around noon and concentrated in the smaller size particles (0.25-2 um in diameter) at concentrations of 5.3, 5.5, and 15.7 ng/cu meter in samples taken from the Southern Bahamas, the Northern Bahamas, and the Sargasso Sea, respectively(2). Methanesulfonic Acid was found in Germany at concentrations of 0.02 – 0.43 ug/cu m in atmospheric samples taken in October and November of 1978(3). Aerosol Methanesulfonic Acid was detected at six stations in the Pacific at mean concentrations of 0.097, 0.029, 0.044, 0.026, 0.021, and 0.024 ug/cu m(4). Aerosol Methanesulfonic Acid has been found at mean concentrations of 9.27X10-9 and 1.14X10-9 mol/cu m in July of 1985 and December of 1986 in the marine atmosphere of the British Isles(5).
TR
Metansülfonik Asit IUPAC Ad metansülfonik asit
Metansülfonik Asit InChI 1S / CH4O3S / c1-5 (2,3) 4 / h1H3, (H, 2,3,4)
Metansülfonik Asit InChI Key AFVFQIVMOAPDHO-UHFFFAOYSA-N
Metansülfonik Asit Kanonik SMILES CS (= O) (= O) O
Metansülfonik Asit Moleküler Formül CH4O3S
Metansülfonik Asit CAS 75-75-2
Metansülfonik Asit lgili CAS 22515-76-0
Metansülfonik Asit Kullanmdan Kaldrlm CAS 115449-98-4, 125756-91-4
Metansülfonik Asit Avrupa Topluluu (EC) Say 200-898-6
Metansülfonik Asit NSC Numaras 3718
Metansülfonik Asit UN Numaras 2585
Metansülfonik Asit UNII 12EH9M7279
Metansülfonik Asit DSSTox Madde Kimlii DTXSID4026422
Metansülfonik Asit Fiziksel Tanmlama Sv
Metansülfonik Asit Renk / Form Kat
Metansülfonik Asit Kaynama Noktas 167 ° C 10 mm Hg’de
Metansülfonik Asit Erime Noktas 20.0 ° C
Metansülfonik Asit Parlama Noktas 189 ° C kapal kap
Metansülfonik Asit Çözünürlük 10.41 M
Metansülfonik Asit Younluk 18 ° C’de 1.4812 g / cu cm
Metansülfonik Asit Buhar Basnc 4.28e-04 mmHg
Metansülfonik Asit LogP log Kow = -2.38 (tahmini)
Metansülfonik Asit Kararllk / Raf Ömrü Orta derecede yüksek scaklklarda termal olarak kararldr.
Metansülfonik Asit Kendiliinden Tutuma Scakl 500 ° C 1013 mm Hg’de
Metansülfonik Asit Ayrma Yangn koullarnda oluan tehlikeli bozunma ürünleri: Karbon oksitler, Sülfür oksitler
Metansülfonik Asit Andrclk Demir, çelik, pirinç, bakr, kurunu andrc
Metansülfonik Asit Erime noktasnda Yüzey Gerilimi 5.0584X10-2 N / m
Metansülfonik Asit Krlma ndeksi Krlma ndeksi: 18 ° C’de 1.4317
Metansülfonik Asit Ayrma Sabitleri pKa = -1.86
Metansülfonik Asit Dier Deneysel Özellikler Kaynar su veya scak sulu alkali ile hidrolize edilmez
Metansülfonik Asit Molekül Arl 96.11 g / mol
Metansülfonik Asit XLogP3-AA -0.9
Metansülfonik Asit Hidrojen Ba Donör Says 1
Metansülfonik Asit Hidrojen Ba Alc Says 3
Metansülfonik Asit Dönebilen Ba Says 0
Metansülfonik Asit Tam Kütle 95.988115 g / mol
Metansülfonik Asit Monoizotopik Kütle 95.988115 g / mol
Metansülfonik Asit Topolojik Polar Yüzey Alan 62.8 Ų
Metansülfonik Asit Ar Atom Says 5
Metansülfonik Asit Formal arj 0
Metansülfonik Asit Kompleksitesi 92.6
Metansülfonik Asit zotop Atom Saym 0
Metansülfonik Asit Tanml Atom Stereocenter Says 0
Metansülfonik Asit Tanmsz Atom Stereocenter Says 0
Metansülfonik Asit Tanml Ba Stereocenter Says 0
Metansülfonik Asit Tanmsz Ba Stereocenter Says 0
Metansülfonik Asit Kovalent Bal Birim Says 1
Metansülfonik Asit Bileii Kanonikletirilmitir Evet
Metansülfonik Asit, sülfo fonksiyonelliine dorudan bal alkil grubunun metil olduu bir alkansülfonik asittir. Escherichia coli metaboliti olarak rol oynar. Bu bir alkansülfonik asit ve tek karbonlu bir bileiktir. Metansülfonatn bir konjuge asididir.Marinosulfonomonas methylotropha suu TR3, tek karbon ve enerji kayna olarak Metansülfonik Asit (MSA) kullanan bir deniz metilotrofudur.Metansülfonik Asit ve dier düük alkansülfonik asitler için yararldr. kurun, nikel, kadmiyum, gümü ve çinkonun kaplanmas. Kalay, bakr, kurun ve dier metallerin kaplamasnda da kullanlr ve baskl devre kart imalatnda kullanlr.Metansülfonik Asit … biyolojik ve tarmsal kimyasallar, tekstil ileme kimyasallar ve plastiklerin hazrlanmasnda kullanlr. Metansülfonik Asit, sulu çözeltilerdeki birçok metal tuzunun yüksek çözünürlüü nedeniyle iyon deiim reçinesi rejenerasyonunda kullanm alan bulur.Metansülfonik Asit (MSA) soln – 50 mg MSA (Eastman Kodak Co No) 6320) / mL kloroform; Metansülfonik Asit, Yüksek Üretim Hacimli (HPV) kimyasal (65FR81686) olarak listelenmitir. HPV olarak listelenen kimyasallar ABD’de üretilmi veya ABD’ye ithal edilmitir.. 1990 ve / veya 1994’te> 1 milyon pound. HPV listesi, 1990 Envanter Güncelleme Kuralna dayanmaktadr. 2006 Envanter Güncelleme Kural kapsamnda bildirilen gizli olmayan kimyasallar için üretim hacmi. Kimyasal: Metansülfonik Asit. Toplu Ulusal Üretim Hacmi: 1 ila <10 milyon pound Metansülfonik Asit vinil eterle O-alkilasyon için çok güçlü bir katalizördür ve multimol ölçeinde ikincisinin patlayc polimerizasyonuna neden olur. Dikloroasetik asit 3 g mol ölçeinde tatmin edici bir katalizördür.Metansülfonik Asit tankerlerde ve 55 galon plastik bidonlarda veya polietilen ekli daha küçük kaplarda sevk edilir.Hem susuz hem de% 70 Metansülfonik Asit 1 saatlik maruziyetten sonra anestezi uygulanm kuyruk yöntemi ile fare cildini andrr. Metansülfonik Asit tavan gözlerini andrd ve tüm oküler dokularda ani ar ve nekroza neden oldu. Vücut arl, karacier veya böbrek arlklar üzerinde herhangi bir olumsuz etki veya Metansülfonik Asit veya potasyum tuzu ile beslenen sçanlarda 2000 mg / kg’a kadar dozajlarda 1 hafta süreyle diyette brüt patoloji görülmütür Metansülfonik Asit üretimi ve esterletirmede katalizör olarak kullanm alkilasyon, olefin polimerizasyonu ve peroksidasyon reaksiyonlar ve bir çözücü olarak çeitli atk akmlar yoluyla çevreye salnmasna neden olabilir. Metansülfonik Asit, kendisi de doal olarak elde edilen dimetil sülfürden üretilen dimetil sülfoksidin atmosferik hidrolizi ile üretilir. Havaya braklrsa, 25 ° C’de 4,28X10-4 mm Hg’lik bir buhar basnc,Metansülfonik Asit sadece buhar olarak var olacan gösterir. Buhar fazl Metansülfonik Asit, fotokimyasal olarak üretilen hidroksil radikalleri ile reaksiyona girerek atmosferde bozunacaktr; Havadaki bu reaksiyonun yar ömrünün 58 gün olduu tahmin edilmektedir. Metansülfonik Asit,> 290 nm dalga boylarnda absorbe eden kromoforlar içermez ve bu nedenle güne nda dorudan fotolize duyarl olmas beklenmez. Metansülfonik Asit topraa salnmas durumunda, tahmini 1 Koç deerine göre çok yüksek hareketlilie sahip olmas beklenir. Metansülfonik Asit pKa’s -1.86’dr, bu da bu bileiin neredeyse tamamen anyonda var olacan gösterir. çevrede oluur ve anyonlar genellikle organik karbon ve kil içeren topraklara nötr muadillerine göre daha güçlü adsorbe etmezler. Nemli topraktan buharlama beklenmez, çünkü asit bir anyon olarak bulunur ve anyonlar uçmaz. Japon MITI testini kullanarak, Teorik BO’nin% 100’üne dört hafta içinde ulald ve bu da biyolojik bozunmann önemli bir çevresel kader süreci olduunu gösteriyor. Suya braklrsa, Metansülfonik Asit tahmini Koc’a göre askda katlara ve tortulara adsorbe olmas beklenmez. PKa, Metansülfonik Asit 5 ile 9 arasndaki pH deerlerinde hemen hemen tamamen anyon formunda bulunacan ve bu nedenle su yüzeylerinden buharlamann önemli bir kader süreci olmas beklenmediini gösterir. Metansülfonik Asit su ile karabilir ve bu nedenle sucul organizmalarda biyokonsantrasyon düüktür. Hidrolizin önemli bir çevresel kader süreci olmas beklenmemektedir çünkü bu bileik, çevresel koullar altnda hidrolize olan fonksiyonel gruplardan yoksundur. Metansülfonik Asit ‘e mesleki maruziyet, Metansülfonik Asit üretildii veya kullanld iyerlerinde bu bileiin solunmas ve deri yoluyla temas etmesi yoluyla meydana gelebilir. zleme verileri, genel popülasyonun ortam havasnn solunmas yoluyla metansülfonik aside maruz kalabileceini göstermektedir; Metansülfonik Asit deniz havasnda yaygn olarak tespit edilmektedir. (SRC) Metansülfonik Asit, deniz yosunu ve tuzlu bataklk bitkilerinden gelen dimetil sülfidin atmosferik fotokimyasal oksidasyonundan üretilen dimetil sülfoksidin (1) atmosferik hidrolizi ile üretilir (2). Metansülfonik Asit ‘in esterletirme, alkilasyon, olefin polimerizasyonu, peroksidasyon reaksiyonlarnda katalizör olarak (1) ve çözücü (2) olarak üretimi ve kullanm çeitli atk akmlar (SRC) yoluyla çevreye salnmasna neden olabilir. Yap tahmin yönteminden (2) belirlenen tahmini Koc deeri 1 (SRC) olan snflandrma emas (1), Metansülfonik Asit toprakta (SRC) çok hareketlilie sahip olmasnn beklendiini göstermektedir.Metansülfonik Asit pKa’s -1.86 (3) olup, bu bileiin çevrede hemen hemen tamamen anyon formunda bulunacan ve anyonlarn genellikle organik karbon ve kil içeren topraklara nötr muadillerine göre daha güçlü adsorbe olmadklarn gösterir. (4). VolatilizatNemli topraktan iyon beklenmez, çünkü asit bir anyon olarak bulunur ve anyonlar uçucu olmaz. Metansülfonik Asit 25 ° C’de 4,28X10-4 mm Hg buhar basncna bal olarak kuru toprak yüzeylerinden (SRC) uçmas beklenmemektedir (5). Japon MITI testini kullanarak, Teorik BO’nin% 100’üne dört haftada ulald (6), bu da biyolojik bozunmann toprakta (SRC) önemli bir çevresel kader süreci olduunu gösteriyor. 1 snflandrma emasna göre (1), tahmini Koç deeri Bir yap tahmin yönteminden (2) belirlenen (SRC),Metansülfonik Asit askda katlara ve çökeltiye (SRC) adsorbe olmasnn beklenmediini gösterir. -1.86 (3) deerindeki bir pKa,Metansülfonik Asit 5-9 pH deerlerinde neredeyse tamamen anyon formunda bulunacan ve bu nedenle su yüzeylerinden buharlamann önemli bir kader süreci olmas beklenmediini gösterir (4). Metansülfonik Asit su ile karabilir (5) ve bu nedenle sucul organizmalarda biyokonsantrasyon düüktür (SRC). Japon MITI testini kullanarak, Teorik BO’nin% 100’üne dört hafta içinde ulald (6), bu da biyolojik bozunmann sudaki (SRC) önemli bir çevresel kader süreci olduunu gösteriyor. Yar deiken organik bileiklerin gaz / partikül partisyonu modeline göre atmosfer (1), 25 ° C’de 4,28X10-4 mm Hg ölçülen buhar basncna sahip Metansülfonik Asit (2) ortam atmosferinde sadece buhar olarak bulunmas beklenmektedir. Buhar fazl Metansülfonik Asit, fotokimyasal olarak üretilen hidroksil radikalleri (SRC) ile reaksiyona girerek atmosferde bozulur; Bu reaksiyonun havada yar ömrü, bir yap tahmin yöntemi kullanlarak türetilen 25 ° C’de 2.8X10-13 cu cm / molekül-saniye hz sabitinden hesaplanan 58 gün (SRC) olarak tahmin edilmektedir. (3). Metansülfonik Asit,> 290 nm (4) dalga boylarnda souran kromoforlar içermez ve bu nedenle güne (SRC) ile dorudan fotolize duyarl olmas beklenmez. 100 mg / L’de bulunan Metansülfonik Asit Japon MITI testinde 30 mg / L’de aktif çamur inokülumu kullanarak teorik BO’nin% 100’üne 4 haftada ulamtr (1). Metansülfonik Asit fotokimyasal olarak üretilen buhar faz reaksiyonu için hz sabiti. hidroksil radikalleri, bir yap tahmin yöntemi kullanlarak 25 ° C’de (SRC) 2.8X10-13 cu cm / molekül-sn olarak tahmin edilmitir (1). Bu, cu cm bana 5X10 + 5 hidroksil radikallik atmosferik konsantrasyonda yaklak 58 günlük bir atmosferik yar ömre karlk gelir (1). Metansülfonik Asit çevre koullarnda hidrolize olan fonksiyonel gruplarn bulunmamas nedeniyle ortamda hidrolize uramas beklenmemektedir (2). Metansülfonik Asit> 290 nm (2) dalga boylarnda absorbe eden kromoforlar içermez ve bu nedenle güne (SRC) ile fotolizi yönlendirmesi beklenmez. Metansülfonik Asit su (1) ile karabilir ve dolaysyla biyokonsantrasyon Sudaki organizmalarda düüktür (SRC). Moleküler balant indekslerine (1) dayanan bir yap tahmin yöntemi kullanlarak, Metansülfonik Asit 1 (SRC) olduu tahmin edilebilir. Bir snflandrma emasna (2) göre bu tahmini Koç deeri, Metansülfonik Asit toprakta çok yüksek hareketlilie sahip olmasnn beklendiini göstermektedir. Metansülfonik Asit pKa’s -1.86 (3) olup, bu bileiin ortamdaki hemen hemen tamamen anyon formunda bulunacan ve anyonlarn genellikle organik karbon ve kil içeren topraklara nötr muadillerine göre daha güçlü adsorbe olmadklarn gösterir. (4). -1.86 (1) deerindeki bir pKa, Metansülfonik Asit 5 ila 9 pH deerlerinde neredeyse tamamen anyon formunda bulunacan ve bu nedenle su yüzeylerinden veya nemli toprak yüzeylerinden buharlamann beklenmediini gösterir. önemli kader süreci (2).Metansülfonik Asit 4,28X10-4 mm Hg buhar basncna bal olarak kuru toprak yüzeylerinden (SRC) buharlamas beklenmemektedir (3). Metansülfonik Asit mikrometre alt aerosol konsantrasyon tepe noktalarna yaklak olarak sahiptir. 1989’da Avustralya açklarnda Cape Grim atmosferinde srasyla ubat ve Aralk aylarnda 0,47 ve 0,4 mol / m3’tür (1). Metansülfonik Asit ölen saatlerinde toplanan ve daha küçük boyutlu partiküllerde (0.25-2 um çapl) konsantre olarak 5.3, 5.5 ve 15.7 ng / cu metre konsantrasyonlarda bulunan atmosferik örneklerde en yüksek seviyelerde bulunmutur. Srasyla Güney Bahamalar, Kuzey Bahamalar ve Sargasso Denizi (2). Metansülfonik Asit, 1978 Ekim ve Kasm aylarnda alnan atmosferik örneklerde Almanya’da 0.02 – 0.43 ug / cu m konsantrasyonlarnda bulunmutur (3). Aerosol Metansülfonik Asit 6 istasyonda tespit edildi.Ortalama 0,097, 0,029, 0,044, 0,026, 0,021 ve 0,024 ug / cu m konsantrasyonlarda Pasifik (4). Aerosol Metansülfonik Asit, Britanya Adalar deniz atmosferinde Temmuz 1985 ve Aralk 1986’da ortalama 9.27X10-9 ve 1.14X10-9 mol / cu m konsantrasyonlarnda bulunmutur (5).