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471348

Methanesulfonic acid solution

70 wt. % in H₂O, solution

Synonym(s):

Mesylic acid, MsOH

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About This Item

Linear Formula:
CH3SO3H
CAS Number:
75-75-2
Molecular Weight:
96.11
NACRES:
NA.21
PubChem Substance ID:
24870724
UNSPSC Code:
12352100
MDL number:
MFCD00007518
Beilstein/REAXYS Number:
1446024
Concentration:
70 wt. % in H2O
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Product Name

Methanesulfonic acid solution, 70 wt. % in H2O

vapor density

3.3 (vs air)

Quality Level

200

vapor pressure

<1 mmHg ( 20 °C)

concentration

70 wt. % in H2O

impurities

≤1,000 ppm Sulfate (SO4), ≤10 ppm Iron, ≤50 ppm Chloride (Cl)

refractive index

n20/D 1.416

density

1.319 g/mL at 25 °C

functional group

sulfonic acid

SMILES string

CS(O)(=O)=O

InChI

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

InChI key

AFVFQIVMOAPDHO-UHFFFAOYSA-N

General description

The product is a 70% aqueous solution of methanesulfonic acid (MSA). 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 solution may be used to study the corrosion behavior of stainless steel.

Legal Information

Product of Arkema Inc.

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
STBK8594
STBK3047
STBJ8050
STBH9758
STBH7673

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Corrosion behaviour of stainless steels in aqueous solutions of methanesulfonic acid.
Finsgar M and Milosev I.
Corrosion Science, 52(7), 2430-2438 (2010)
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)
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Global Trade Item Number

SKUGTIN
471348-100ML04061832359892
471348-18L04061838152312
471348-1L04061832359908
471348-500ML04061832359915