Description

Methanesulfonic Acid CAS NO 75-75-2 is a versatile and strong organic acid with excellent solubility in water and organic solvents. Its high acidity, low volatility, and non-oxidizing nature make it a superior and environmentally friendlier alternative to traditional mineral acids in many industrial processes. This compound is essential for manufacturers in the pharmaceutical, electroplating, and chemical synthesis sectors, where it serves as a key catalyst, electrolyte, or intermediate.

Application

• Chemical Synthesis: Widely used as an acid catalyst in esterification, alkylation, and condensation reactions, offering advantages over sulfuric or hydrochloric acid.
• Electroplating & Metal Finishing: A critical component in tin and lead electroplating baths due to its high conductivity and ability to produce high-quality, smooth deposits.
• Pharmaceutical Intermediates: Employed in the synthesis of various active pharmaceutical ingredients (APIs) and as a catalyst in protecting group chemistry.
• Oil & Gas Industry: Utilized as a catalyst in alkylation processes and as a component in acidizing treatments for well stimulation.
• Polymer & Resin Production: Acts as a curing agent for epoxy resins and a catalyst in the production of phenolic and other specialty resins.
• Cleaning & Descaling: An effective agent for cleaning metal surfaces and removing mineral scales in industrial equipment.
• Battery Electrolytes: Investigated for use in advanced battery systems, including lead-acid and flow batteries, due to its ionic properties.

Basic Information

Product Name	Methanesulfonic Acid
CAS No.	75-75-2
Molecular Formula	CH4O3S
Molecular Weight	96.11 g/mol
Synonyms	Methanesulphonic Acid; Methylsulfonic Acid; MSA; Mesylic Acid; Sulfomethane; Kyselina methansulfonova; UN 3265; NSC 3718
EINECS	200-898-6

Quality Control

Our Methanesulfonic Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards, and our quality management system supports the production of technical, electronic, and high-purity grades. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its hygroscopic nature, containers should be kept tightly sealed to prevent moisture absorption. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay	≥ 99.0 %
Water Content	≤ 0.5 %
Residue on Ignition	≤ 0.05 %
Chloride (Cl)	≤ 50 ppm
Sulfate (SO4)	≤ 100 ppm
Iron (Fe)	≤ 10 ppm
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.