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Calcium Chloride Anhydrous is a white, strongly hygroscopic solid supplied as granules or powder with approx. 94–97% CaCl2. It releases heat on dissolution and is used for de-icing, dust control, drying and as a calcium source.
- De-icing: Road and pavement de-icing; effective at lower temperatures than sodium chloride.
- Dust Control: Binding dust on unpaved roads and construction sites.
- Construction: Concrete set accelerator (chloride limits apply to reinforced concrete).
- Oil & Gas: Drilling and completion brines.
- Drying: Desiccant for gases and liquids.
- Chemical Manufacturing: Source of calcium for calcium salts.
Appearance
White granules or powder, hygroscopic
Odor
Odorless
Molecular Formula
CaCl2
Molecular Weight
110.98 g/mol
Melting Point
772 °C
Density
2.15 g/cm³
Solubility
Very soluble in water (dissolution releases heat)
Chemical Stability
Stable under normal conditions, but absorbs moisture from the air