DINITROTOLUENE Chemical compatibility with O-rings, rubbers, & plastics

Dinitrotoluene, commonly abbreviated as DNT and identified by the formula C7H6N2O4, is a yellow crystalline nitroaromatic compound used as an intermediate in the manufacture of polyurethane foams, explosives, and dyes. In processing environments, contact with DNT may affect O-rings, rubber seals, gaskets, and certain plastic components, so compatibility assessment is important to limit degradation. Dinitrotoluene is highly toxic, can cause significant skin and respiratory irritation, and is considered a potential carcinogen. Strict storage controls, safe handling procedures, and appropriate PPE are essential.

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