Definition

Chemical name

Calcium chloride

Einecs

233-140-8

Chemical formula

CaCl₂ · nH₂O (n = 0,2 or 6)

Molecular weight

110,99 (anhydrous), 147,02 (dihydrate), 219,08 (hexahydrate)

Assay

Content not less than 93,0 % on the anhydrous basis

Description

White, odourless, hygroscopic powder or deliquescent crystals

Identification

Anhydrous calcium chloride: freely soluble in water and ethanol

Dihydrate: freely soluble in water, soluble in ethanol

Hexahydrate: very soluble in water and ethanol

Purity

Magnesium and alkali salts

Not more than 5 % on the anhydrous basis

Fluoride

Not more than 40 mg/kg

Arsenic

Not more than 3 mg/kg

Lead

Not more than 10 mg/kg

Mercury

Not more than 1 mg/kg