471356

Sigma-Aldrich

Methanesulfonic acid

≥99.0%

Linear Formula:
CH3SO3H
CAS Number:
Molecular Weight:
96.11
Beilstein/REAXYS Number:
1446024
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

3.3 (vs air)

vapor pressure

1 mmHg ( 20 °C)

assay

≥99.0%

refractive index

n20/D 1.429 (lit.)

bp

167 °C/10 mmHg (lit.)

mp

17-19 °C (lit.)

solubility

water: soluble 1,000 g/L at 20 °C

density

1.481 g/mL at 25 °C (lit.)

SMILES string

O=S(O)(C)=O

InChI

1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)

InChI key

AFVFQIVMOAPDHO-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

Packaging

5 L in poly drum
2.5 L in glass bottle
5, 25, 100, 500 mL in glass bottle

Pictograms

CorrosionExclamation mark

Signal Word

Danger

hazcat

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

storage_class_code

8A - Combustible, corrosive hazardous materials

WGK Germany

WGK 1

Flash Point(F)

372.2 °F - closed cup

Flash Point(C)

189 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Facile in-situ preparation of polyaniline/graphene nanocomposites using methanesulfonic acid.
Kim DH and Park SY.
Polymer, 55(12), 2928-2935 (2014)
Use of methanesulfonic acid as catalyst for the production of linear alkylbenzenes.
Luong BX, et al.
J. Catal., 226(2), 301-307 (2004)
Methanesulfonic acid-catalyzed conversion of glucose and xylose mixtures to levulinic acid and furfural.
Rackemann DW, et al.
Industrial Crops and Products, 52, 46-57 (2014)
Microbial metabolism of methanesulfonic acid.
Kelly DP and Murrell JC.
Archives of Microbiology, 172(6), 341-348 (1999)
Methane Sulphonic Acid is Green Catalyst in Organic Synthesis.
Kulkarni P.
Orient. J. Chem., 31(1), 447-451 (2015)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service