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

Dimethyl hydrazine, also known as 1,1-dimethylhydrazine or UDMH with the formula C2H8N2, is a colorless, highly flammable liquid with a strong odor used as a rocket propellant and chemical intermediate. In fuel handling and processing systems, compatibility with O-rings, rubber seals, gaskets, and plastic components must be carefully evaluated to prevent swelling or degradation. Dimethyl hydrazine is highly toxic and can cause severe skin and respiratory irritation. Strict storage controls, safe handling procedures, and appropriate PPE are essential.

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