METHYL TERTIARY BUTYL ETHER (MTBE) Chemical compatibility with O-rings, rubbers, & plastics

Methyl tert-butyl ether, often abbreviated as MTBE and also called methyl t-butyl ether with the formula C5H12O, is a colorless, volatile liquid commonly used as a gasoline additive to increase octane and improve combustion efficiency. It is also used as a solvent and chemical intermediate in industrial manufacturing. In fuel handling equipment, MTBE may contact O-rings, rubber seals, gaskets, and plastic components, so compatibility should be evaluated to prevent swelling or material degradation. Proper storage, ventilation, spill control, and appropriate PPE are recommended to ensure safe handling and reduce environmental contamination risks.

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