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MESITYL OXIDE Chemical compatibility with O-rings, rubbers, & plastics

Mesityl oxide, also known as 4-methyl-3-penten-2-one, is a colorless to pale yellow liquid with the chemical formula C6H10O widely used as an industrial solvent and chemical intermediate. It is commonly used in the manufacture of coatings, inks, adhesives, synthetic resins, and in the synthesis of pharmaceuticals and agrochemicals. Exposure to mesityl oxide may cause irritation to the skin, eyes, and respiratory system. In equipment containing this solvent, O-rings, rubber seals, gaskets, and plastic components should be evaluated for chemical compatibility to prevent swelling or degradation. Proper handling, storage, ventilation, and protective measures are recommended.

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