Calcium Chloride

Exceptional Moisture Absorption: Absorbs over 300% of its weight in water, ideal for drying and desiccant applications.

Versatile Hydration States: Multiple stable forms (hexahydrate to anhydrous) enable controlled phase transitions for diverse industrial uses.

High Purity Grades Available: Offered in technical, food, pharma, and reagent grades with tailored purity and low impurity levels.

Wide Industrial Applications: Used in deicing, dust control, gas drying, concrete acceleration, food processing, and refrigeration.

Energy-Efficient: Supports thermochemical energy storage and phase-change systems, with energy density up to 0.5 GJ/m³.

Product Details

Anhydrous calcium chloride appears as a white, porous crystalline solid or granular material with strong deliquescent properties. It has a melting point of 782°C, a density of 2.15 g/cm³, and a boiling point exceeding 1600°C. This compound readily dissolves in water with significant heat release and is also soluble in ethanol and acetone. The most frequently encountered form is calcium chloride hexahydrate (CaCl₂·6H₂O), which exists as colorless trigonal crystals that are highly hygroscopic and have a bitter-salty taste. This hydrated form has a density of 1.71 g/cm³ and dissolves in its own water of crystallization at 29.92°C. Upon heating to 30°C, it releases four water molecules to produce the dihydrate (CaCl₂·2H₂O), appearing as a white, porous, moisture-absorbing solid. Further heating yields the monohydrate, and temperatures above 200°C result in complete dehydration, forming highly hygroscopic anhydrous calcium chloride. Additionally, calcium chloride reacts with ammonia to form an ammoniate compound (CaCl₂·8NH₃). Anhydrous Calcium Chloride (CaCl₂, CAS 10043-52-4) is a highly versatile inorganic compound appearing as white porous crystals or granules with extreme deliquescence (absorbs >300% its weight in water).