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471348 Sigma-Aldrich

Methanesulfonic acid solution

70 wt. % in H2O

  • CAS Number 75-75-2

  • Linear Formula CH3SO3H

  • Molecular Weight 96.11

  •  Beilstein Registry Number 1446024

  •  MDL number MFCD00007518

  •  PubChem Substance ID 24870724

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Properties

Related Categories Acids, Acids & Bases, Chemical Synthesis, Organic Acids, Synthetic Reagents More...
vapor density   3.3 (vs air)
vapor pressure   <1 mmHg ( 20 °C)
InChI Key   AFVFQIVMOAPDHO-UHFFFAOYSA-N
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

Description

Packaging

1 L in glass bottle

100, 500 mL in glass bottle

18 L in poly drum

Legal Information

Product of Arkema Inc.

Application

Methanesulfonic acid solution may be used to study the corrosion behavior of stainless steel.

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.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3265 8 / PGII
WGK Germany 
1

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

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Peer-Reviewed Papers
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References

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