Methanesulfonic acid

Names

[ CAS No. ]:
75-75-2

[ Name ]:
Methanesulfonic acid

[Synonym ]:
EINECS 200-898-6
Mesic acid
MFCD00007518
methane sulfonic acid
Methanesulfonic acid
Methanesulphonic acid
CH3SO3H
Methylsulfonic acid
Methane sulfonicacid

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Boiling Point ]:
167 °C10 mm Hg(lit.)

[ Melting Point ]:
19 °C

[ Molecular Formula ]:
CH₄O₃S

[ Molecular Weight ]:
96.106

[ Flash Point ]:
>230 °F

[ Exact Mass ]:
95.988113

[ PSA ]:
62.75000

[ LogP ]:
-1.89

[ Vapour density ]:
3.3 (vs air)

[ Vapour Pressure ]:
1 mm Hg ( 20 °C)

[ Index of Refraction ]:
1.448

[ Stability ]:
Stable. Moisture sensitive. Incompatible with amines, bases, water, common metals. Releases a substantial amount of heat when diluted with water (add acid to water with care if diluting).

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: PB1140000

CHEMICAL NAME :: Methanesulfonic acid

CAS REGISTRY NUMBER :: 75-75-2

BEILSTEIN REFERENCE NO. :: 1446024

LAST UPDATED :: 199710

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C-H4-O3-S

MOLECULAR WEIGHT :: 96.11

WISWESSER LINE NOTATION :: WSQ1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >330 ppm/6H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot, POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960- Volume(issue)/page/year: 48,371,1976 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83577 No. of Facilities: 82 (estimated) No. of Industries: 3 No. of Occupations: 9 No. of Employees: 1209 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83577 No. of Facilities: 325 (estimated) No. of Industries: 7 No. of Occupations: 13 No. of Employees: 8084 (estimated) No. of Female Employees: 1393 (estimated)

Safety Information

[ Symbol ]:

GHS05, GHS07

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H290-H302 + H312-H314-H335

[ Precautionary Statements ]:
P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
C:Corrosive

[ Risk Phrases ]:
R34

[ Safety Phrases ]:
S26-S36-S45-S1/2-S36/37/39

[ RIDADR ]:
UN 3265 8/PG 2

[ WGK Germany ]:
1

[ RTECS ]:
PB1140000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2904100000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2904100000

[ Summary ]:
2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

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