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471356 Methanesulfonic acid, ≥99.0%, Merck

471356 Merck

Methanesulfonic acid (MSA) is a strong organic acid used as a catalyst in organic synthesis and as a model electrolyte for electrochemical processes.

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Methanesulfonic acid is a high-purity organic acid (≥99.0%) also known as mesylic acid. It is considered a "green" acid due to its lower toxicity and corrosivity compared to traditional mineral acids. MSA is highly stable, biodegradable, and serves as an effective catalyst in various chemical reactions, including the production of linear alkylbenzenes and the transformation of glucose/xylose mixtures into levulinic acid and furfural.

Advantages

  • High purity: Minimum assay of 99.0% ensures consistent experimental results.
  • Environmentally friendly: Readily biodegradable, forming CO2 and sulfate.
  • Safe handling: Less toxic and corrosive than mineral acids like sulfuric or hydrochloric acid.
  • Versatility: Acts as an excellent catalyst for polymerization and alkylation reactions.
  • High conductivity: Suitable as an electrolyte in electrochemical applications.

Technical specifications

Catalogue number 471356
Product name Methanesulfonic acid
Brand Sigma-Aldrich
CAS number 75-75-2
Assay ≥99.0%
Linear formula CH3SO3H
Molar mass 96.11 g/mol
Density 1.481 g/mL at 25 °C (lit.)
Melting point 17–19 °C (lit.)
Boiling point 167 °C/10 mmHg (lit.)

Available packaging options

Container Type Pack Size
Glass bottle 25 mL
Glass bottle 100 mL
Glass bottle 500 mL
Glass bottle 2.5 L
Poly drum 5 L
Brand Merck