The chemical Potassium chloride has a designated molecular formula of ClK and a molecular weight of 74.548 g/mol. Synonyms may include: Caswell No. 686, CCRIS 1962, Chlorid draselny [Czech], Chloride of potash, Chloropotassuril, Chlorvescent, K-Contin, Dipotassium dichloride, K-Dur, EINECS 231-211-8, Emplets potassium chloride, Enseal (ChemID).