CAS Number: 75-75-2
Formula: CH4O3S
Formula Weight: 96.11
Linear Formula: CH3SO3H
MDL No.: MFCD00007518
Purity: >=99.0%
Boiling Point: 167 C/10 mmHg(lit.)
Melting Point: 17-19 C (lit.)
Density: 1.481 g/mL at 25 C(lit.)
Refractive Index: n20/D 1.429(lit.)
Beilstein Registry Number: 1446024
EC Number: 200-898-6
UNSPSC Code: 12352100
General description: Methanesulfonic acid (MSA) is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. MSA undergoes biodegradation by forming CO2 and sulphate. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.
Application: Methanesulfonic acid may be used:. As a catalyst to produce linear alkylbenzenes by the addition reaction between long-chain olefins and benzene.. To prepare polyaniline (PANI)/graphene composites with enhanced thermal and electrical properties.. As a catalyst for the transformation of glucose/xylose mixtures to levulinic acid and furfural.
RTECS: PB1140000
RIDADR: UN 3265 8 / PGII
WGK Germany: 1
Flash Point(F): 372.2 F
Flash Point(C): 189 C
R Codes: 21/22-34
S Codes: 26-36/37-45
IOD Codes: C
Symbol: GHS05, GHS07
Signal Word: Danger
Hazard Statements: H290-H302 + H312-H314-H335
Precautionary statements: P260-P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338