DIMETHYL ETHER Chemical compatibility with O-rings, rubbers, & plastics

Dimethyl ether, commonly referred to as DME or methoxymethane with the formula C2H6O, is a colorless, highly flammable gas with a faint odor used as an aerosol propellant, refrigerant, and chemical feedstock. In pressurized systems, its exposure can influence O-rings, rubber seals, gaskets, and plastic components, making chemical compatibility assessment important to prevent swelling or loss of integrity. Contact may irritate skin and the respiratory tract, especially in confined areas. Proper storage, ventilation, handling controls, and suitable PPE are essential.

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