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AMMONIUM MOLYBDENATE Chemical compatibility with O-rings, rubbers, & plastics

Ammonium molybdate, also referred to as ammonium molybdenate or diammonium molybdate, is an inorganic white crystalline salt with the chemical formula (NH4)2MoO4. This water-soluble compound is commonly used as an analytical chemistry reagent, a catalyst in various chemical processes, and a precursor in the production of molybdenum-containing materials and pigments. In chemical compatibility evaluations, aqueous ammonium molybdate solutions may influence the performance of rubber O-rings and gaskets depending on concentration, temperature, and exposure duration. Although ammonium molybdenate is considered relatively low in toxicity, direct contact can result in skin or eye irritation. When assessing long-term exposure conditions, it is important to review how molybdate salts interact with specific rubber compounds and plastic materials used in O-rings and gaskets. Proper storage, labeling, and safe handling procedures help ensure both personnel safety and reliable material performance.

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