METHYL CYANIDE (ACETONITRILE) Chemical compatibility with O-rings, rubbers, & plastics

Methyl cyanide, also known as acetonitrile or cyanomethane, is a colorless, highly volatile liquid with the chemical formula C2H3N commonly used as a solvent and chemical intermediate in pharmaceutical, agrochemical, and polymer production. It is also used in coatings, adhesives, and specialty cleaning formulations. Exposure to methyl cyanide can present toxicity concerns through inhalation, ingestion, or skin contact. In equipment handling this solvent, O-rings, rubber seals, gaskets, and plastic components should be evaluated for chemical compatibility, as strong polar solvents can affect certain rubber materials. Proper handling, storage, ventilation, and protective practices are essential.

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