Appearance: White crystalline solid or flakes, odorless

Purity (CaCl₂ content): 74�77% typical (industrial grade); ≥99% for analytical grade

Density (at 20 �C): ~1.85 g/cm�

Melting Point: 175 �C (decomposes to anhydrous CaCl₂ on heating)

Boiling Point: Decomposes before boiling

Solubility: Highly soluble in water (74.5 g/100 mL at 20 �C); soluble in ethanol, methanol, and
acetone

pH (10% solution, 25 �C): 5.0 � 9.0

Moisture Content: ≤ 1.0%

Heavy Metals (Pb, As): ≤ 0.001% (food/pharma grade)

Iron (Fe): ≤ 0.006%