Methylmercaptaan

Mercaptomethane

Metilmercaptano

methylsulfanium

Methylmercaptan

Methaanthiol

Thiomethanol

methanethiol

Methanethiole

Thiomethane

Mercaptan methylique

Methanthiol

Methvtiolo

(Mercaptomethyl)polystyrene

LSDPWZHWYPCBBB-UHFFFAOYSA-N

Methyl sulfhydrate

Thiomethyl alcohol

Methyl thioalcohol

METHYL MERCAPTAN

methyl-mercaptan

methane thiol

methyl thiol

methyl-thiol

Methanethiol, purum

CH3SH

Methanethiol-S-d

Mercaptan C1

Metilmercaptano [Italian]

Metilmercaptano [Spanish]

Methylmercaptaan [Dutch]

Methanthiol [German]

Methvtiolo [Italian]

Z22

Mercaptan methylique [French]

AC1L1A8B

Methaanthiol [Dutch]

Methyl mercaptan (natural)

UN1064

CTK2H7493

HSDB 813

HMDB03227

C00409

2X8406WW9I

RCRA waste number U153

OR332408

NSC229573

OR000105

OR164971

OR230018

OR230158

UN 1064

DTXSID5026382

Methanethiol, >=98.0%

LS-2938

CHEBI:16007

UNII-2X8406WW9I

Methanethiol, 98.0%

AN-23827

SC-46829

NSC-229573

AKOS009157032

RCRA waste no. U153

BRN 1696840

FEMA No. 2716

FT-0696326

74-93-1

EINECS 200-822-1

63933-47-1

17719-48-1

InChI=1/CH4S/c1-2/h2H,1H

Methyl mercaptan [UN1064] [Poison gas]

(Mercaptomethyl)polystyrene, extent of labeling: ~2.0 mmol/g S loading

5188-07-8 (hydrochloride salt)

Methyl mercaptan [UN1064] [Poison gas]

4-01-00-01273 (Beilstein Handbook Reference)

21094-80-4 (mercury(2+) salt)

35029-96-0 (lead(2+) salt)

The Henry's Law constant for methyl mercaptan is estimated as 0.0031 atm-cu m/mole(SRC) derived from its vapor pressure, 1,510 mm Hg(1), and water solubility, 15,400 mg/L(2). This Henry's Law constant indicates that methyl mercaptan is expected to volatilize rapidly from water surfaces(3). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(3) is estimated as 0.8 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(3) is estimated as 2.8 days(SRC). Methyl mercaptan's Henry's Law constant indicates that volatilization from moist soil surfaces is expected to occur(SRC). Methyl mercaptan is expected to volatilize rapidly from dry soil surfaces based upon its vapor pressure and because it is a gas a temperatures above 6 deg C(SRC). However, gaseous methyl mercaptan gas has been found to strongly adsorb to moist and dry soil surfaces suggesting that adsorption might be an environmental sink for methyl mercaptan(4). Therefore, the importance of volatilization from soil surfaces may be attenuated by adsorption(SRC).
Literature: (1) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, DC: Taylor and Francis (1989) (2) Hine J, Mookerjee PK; J Org Chem 40: 292-8 (1975) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (4) Smith KA et al; Soil Sci 116: 313-9 (1973)

Using a structure estimation method based on molecular connectivity indices(1), the Koc of methyl mercaptan can be estimated to be 13(SRC). According to a classification scheme(2), this estimated Koc value suggests that methyl mercaptan is expected to have very high mobility in soil. Gaseous methyl mercaptan has been observed to partition to soils(3). For example, when gaseous methyl mercaptan was passed over six air-dried and moist (50% field capacity) soils, 2.4-32.1 mg/g and 2.2-21.4 mg/g of methyl mercaptan rapidly adsorbed to the dry and moist soils, respectively(3). Neither the capacity or rate of sorption was correlated to soil pH, organic matter content, or clay content; sterile controls ruled out the involvement of microorganisms(3); it was suggested that adsorption to soil surfaces might be an environmental sink for gaseous methyl mercaptan(3).
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Jan, 2011. Available from, as of July 19, 2012: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm (2) Swann RL et al; Res Rev 85: 17-28 (1983) (3) Smith KA et al; Soil Sci 116: 313-9 (1973)

METHYLSULFANYLMETHANE

Methanethiomethane

Dimethylsulphide

Methylthiomethane

dimethylsulfane

Dimethylsulfid

dimethylsulfide

Methylsulphide

Methylthiomethyl radical

Thiobismethane

(Methylthiomethylidyne)radical

methylsulfide

Dimethyl monosulfide

Thiopropane

dimethyl sulphide

Dimethyl thioether

Methyl monosulfide

QMMFVYPAHWMCMS-UHFFFAOYSA-N

reduced dimethyl sulfoxide

dimethyl sulfide

Methyl sulphide

Methyl thioether

Thiobis-methane

(Methylsulfanyl)methane

Methyl sulfide

REDUCED-DMSO

(methylthio)methane

Dimethyl sulfide, analytical standard

Dimethyl sulfoxide(Reduced)

Sulfure de methyle

(Methylsulfanyl)methane #

2-Thiapropane

2-Thiopropane

AC1L1ANN

Exact-S

Thiobis(methane)

ACMC-1BBLH

C2H6S

Dimethylsulfid [Czech]

Nat. Dimethyl Sulfide

Dimethyl sulfide (natural)

Methane, thiobis-

QS3J7O7L3U

KSC377G0P

Sulfide, methyl-

6873AF

CHEMBL15580

Dimethyl sulfide, >=99%

UN1164

UNII-QS3J7O7L3U

CTK2H7307

Dimethyl sulfide, 98%

HMDB02303

HSDB 356

M0431

[SMe2]

RP18263

Sulfure de methyle [French]

C00580

LTBB002388

(CH3)2S

DTXSID9026398

LS-2960

methyl sulphide, dimethyl sulphide, exact-S, thiobismethane

OR000121

OR337379

STL481894

UN 1164

A838342

CHEBI:17437

AN-23841

ANW-36574

KB-76628

SC-26847

Dimethyl sulfide, >=99%, FCC

MFCD00008562

AI3-25274

RTR-024212

TR-024212

AKOS009031411

I09-0087

Q-100810

BRN 1696847

Dimethyl sulfide, anhydrous, >=99.0%

FEMA No. 2746

FT-0603084

Methane, 1,1'-thiobis-

75-18-3

Dimethyl sulfide, 99% 250ml

MCULE-4525381422

Dimethyl sulfide, redistilled, >=99%, FCC, FG

EINECS 200-846-2

31533-72-9

Dimethyl sulfide [UN1164] [Flammable liquid]

Dimethyl sulfide, >=95.0% (GC)

Dimethyl sulfide, natural, >=99%, FCC, FG

MolPort-003-928-951

Dimethyl sulfide [UN1164] [Flammable liquid]

13741-EP2269977A2

13741-EP2277865A1

13741-EP2280006A1

13741-EP2284171A1

13741-EP2287153A1

13741-EP2298767A1

13741-EP2305656A1

13741-EP2308851A1

13741-EP2308873A1

13741-EP2311820A1

13741-EP2314576A1

13741-EP2314587A1

13741-EP2316836A1

13838-EP2292595A1

13838-EP2295409A1

13838-EP2295426A1

13838-EP2295427A1

13838-EP2295437A1

13838-EP2298775A1

13838-EP2311820A1

13838-EP2316836A1

18767-EP2270003A1

18767-EP2272832A1

18767-EP2277848A1

18767-EP2292576A2

18767-EP2292597A1

18767-EP2301933A1

18767-EP2305672A1

18767-EP2308510A1

18767-EP2308838A1

18767-EP2308877A1

18767-EP2311827A1

18767-EP2314576A1

18767-EP2314587A1

47704-EP2280006A1

47704-EP2311811A1

80926-EP2295426A1

80926-EP2295427A1

80926-EP2305687A1

Dimethyl sulfide, puriss., >=99.0% (GC)

InChI=1/C2H6S/c1-3-2/h1-2H

4-01-00-01275 (Beilstein Handbook Reference)

The Henry's Law constant for dimethyl sulfide has been measured as 1.61X10-3 atm-cu m/mole(1). This Henry's Law constant indicates that dimethyl sulfide is expected to volatilize rapidly from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 3 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 3 days(SRC). Dimethyl sulfides's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of dimethyl sulfide from dry soil surfaces may exist(SRC) based upon a vapor pressure of 502 mm Hg(3).
Literature: (1) Gaffney, JS et al; Env Sci Tech 21: 519-23 (1987) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Vol 4. Design Inst Phys Prop Data, Amer Inst Chem Eng, NY, NY: Hemisphere Pub Corp (1989)

The Koc of dimethyl sulfide is estimated as 6.3(SRC), using a water solubility of 22,000 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that dimethyl sulfide is expected to have very high mobility in soil.
Literature: (1) Suzuki T; J Comp-Aided Molec Des 5: 149-66 (1991) (2) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm as of Oct 1, 2009. (3) Swann RL et al; Res Rev 85: 17-28 (1983)
Literature: #Air-dried, unsterilized moist, and sterilized moist soils exposed to air initially containing 500 ppm dimethyl sulfide adsorbed an avg of 32, 308, and 10 ug dimethyl sulfide/g soil, respectively, in 15 days(1). Time required for complete sorption of dimethyl sulfide by moist soil from air initially containing 100 ppm dimethyl sulfide: soil 1 (Weller) - 1st exposure 150 min, 2nd exposure 100 min, 3rd exposure 95 min; soil 2 (Harps) - 1st exposure 45 min, 2nd exposure 24 min, 3rd exposure 19 min(1). These data suggest that moist soils have a greater tendency to adsorb dimethyl sulfide than dry soils, and that microbial activity in moist soils may be responsible for greater adsorption(1). When natural gas containing 0.5 pounds of dimethyl sulfide per million cubic feet of gas was passed through a bed of pulverized, dry, montmorillonite clay, dimethyl sulfide exhibited a fast breakthrough (2 hours) and a fast build-up rate in effluent gas (85% of influent concn 4 hours after breakthrough), suggesting that dimethyl sulfide does not adsorb to dry soils(2).
Literature: (1) Bremner JM, Banwart WL; Soil Biol Biochem 8: 79-83 (1976) (2) Williams RP; Oper Sect Proc - Am Gas Assoc pp. T29-T37 (1976)