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LC3910 Methanesulfonic acid

for synthesis


Order number Packaging Quantity Price €
AC30910 Glass bottle 5 ml 10.89
AC30910 Glass bottle 250 ml 25.65
AC30910 Drum stainl. st. 1 l 90.00


Product information
Synonyms MSA
Hill Formula CH4O3S
Chemicalformula CH3SO3H
HS Code 2904 10 00
EC number 200-898-6
Molar mass 96.11 g/mol
EC indexnumber 607-145-00-4
CAS number 75-75-2


Chemical and physical data
Ignition temperature >500 °C
Solubility 1000 g/l (20 °C)
Melting point 20 °C
Molar mass 96.11 g/mol
Density 1.48 g/cm3 (20 °C)
Boiling point 167 °C (13 hPa)
Vapor pressure 167 °C (13 hPa)
Flash point 189 °C
Refractive index 1.4303 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H314: Causes severe skin burns and eye damage.
Precautionary Statement(s) P260: Do not breathe vapour.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

RTECS PB1140000
Storage class 8 A Combustible substances, corrosive
WGK WGK 1 slightly water endangering
Disposal 4
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).


Safety information
R Phrase R 34
Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger corrosive
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 2922 CORROSIVE LIQUID, TOXIC, N.O.S.(METHANESULFONIC ACID), 8 (6.1), II, Segregation Group: 1 (Acids)
Declaration (transport by air) IATA-DGR UN 2922 CORROSIVE LIQUID, TOXIC, N.O.S.(METHANESULFONIC ACID), 8 (6.1), II


Toxicological data
LD 50 oral LD50 rat 200 mg/kg
LD 50 dermal LD50 rabbit 200 – 2000 mg/kg


Assay (acidimetric) ≥ 99 %
Density (d 20 °C/ 4 °C) 1.478 – 1.482


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