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COBALT CHLORIDE Chemical compatibility with O-rings, rubbers, & plastics

Cobalt chloride, also known as cobaltous chloride or CoCl2, is a blue crystalline salt used in chemical manufacturing, humidity indicator papers, and laboratory reagents. Although generally considered low in acute toxicity, contact may cause skin and respiratory irritation. In systems where this compound is present, compatibility with O-rings, rubber seals, gaskets, and plastic components should be reviewed to limit potential material degradation. Proper storage practices, controlled handling procedures, and appropriate PPE are important for maintaining safety and equipment reliability.

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