CAS Registry Number

CAS 7646-79-9 — Cobalt(II) chloride

Cobalt(II) chloride is an inorganic salt primarily used in drying agents, catalysts, and as a colorant in ceramics and paints due to its blue-to-pink color change with hydration. It serves as a moisture indicator and is applied in laboratory settings, electroplating, and analytical chemistry. Cobalt(II) chloride has the CAS number 7646-79-9, with the molecular formula CoCl₂ and a molecular weight of 129.84 g/mol. It is stored at ambient conditions and requires careful handling, marked with a **Danger** signal word for toxicity and corrosivity. Molekula supplies Cobalt(II) chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.