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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 Segment

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

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

Hazard Classifications

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Deleterious substance

pdsc

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

471348-18L:4.548173365817E12 + 471348-500ML:4.548173361369E12 + 471348-1L:4.548173365824E12 + 471348-100ML:4.5481733658E12

jan

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