Methanesulfonic Acid, a potent organic acid characterized by its high ionic conductivity and non-oxidizing properties, is a critical chemical reagent used extensively in industrial electroplating and catalytic synthesis. This liquid chemical functions as a highly effective electrolyte in metal finishing processes, particularly for tin and solder plating, where it facilitates uniform metal deposition and prevents the formation of insoluble salts. In the production of pharmaceutical intermediates and fine chemicals, it serves as an efficient acid catalyst for esterification, alkylation, and polymerization reactions, offering superior reaction selectivity compared to traditional mineral acids. We provide this material with competitive factory pricing, supporting requirements for customized specifications to meet specific concentration and high-purity electronic grade standards. All shipments are accompanied by comprehensive MSDS, TDS, COA documentation to ensure regulatory safety and are available for bulk supply via corrosion-resistant logistics systems to support continuous industrial manufacturing.
Methanesulfonic Acid CAS 75-75-2
- CAS: 75-75-2
- Synonyms: Mesic acid, MSA, Methylsulfonic acid, Methanesulphonic acid, Methansulfonic acid
- Einecs: 200-898-6
- Molecular Formula: CH4O3S
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
Methanesulfonic acid
Also known as: methane sulfonic acid adipic acid 1-(2,5-dioxo-1-pyrrolil)ester 6-methyl ester
Chemical formula: CH4O3S
CAS accession number: 75-75-2
Flash point: 189°C
Melting point: -60°C
Molecular weight: 96.11
Boiling point: 167°C (1.33kPa)
Density: 1.481
EINECS accession number: 200-898-6
Low Chloride (<10ppm) and Low Metal Content grades available for electronics plating.
Methane sulfonic acid is a raw material for pharmaceuticals and pesticides, and can also be used as a dehydrating agent, coating curing accelerator, fiber treatment agent, solvent, alkylation, esterification and polymerization reaction catalyst. Used as a catalyst for solvent, esterification and polymerization reactions.
Storage method:
This product should be sealed and stored in a cool and dry place away from light. This product is packaged in 250kg plastic drums or steel-plastic drums. Store in a cool and ventilated warehouse. Stay away from fire and heat sources. Isolate storage and transportation from oxidizing agents and alkalis.
First aid measures
Skin contact: Remove contaminated clothing immediately and rinse with plenty of running water for at least 15 minutes. Medical treatment.
Eye contact: Lift the eyelid immediately and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Medical treatment.
Inhalation: Quickly leave the scene to fresh air. Keep your airways open. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration and seek medical attention immediately.
Food: Rinse your mouth with water and give milk or egg white. Medical treatment.
FAQ - Technical & Supply Chain
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Q:
Does Methanesulfonic Acid correspond to the solid aromatic sulfonic acid or the liquid aliphatic acid?
A: Methanesulfonic Acid is verified under CAS 75-75-2 as the simplest aliphatic alkane sulfonic acid (MSA), distinguishing it from the solid p-Toluenesulfonic Acid (PTSA) to ensure a liquid handling profile at room temperature and superior biodegradability for green chemical synthesis. -
Q:
Why is Methanesulfonic Acid frequently substituted for Sulfuric Acid in organic synthesis and esterification?
A: Methanesulfonic Acid is typically applied as a strong acid catalyst because, unlike Sulfuric Acid, it is non-oxidizing, which prevents the charring, carbonization, or discoloration of sensitive organic substrates during high-temperature reactions.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
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Sample & Supply
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Storage & Shipping
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