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CaCl₂
Calcium chloride
IUPAC : Calcium chloride
HalideSaltIndustrialEverydayFood
Highly soluble hygroscopic salt, heavily used as a winter road de-icer (more effective than NaCl at low temperature) and as an industrial desiccant.
3D ball-and-stick representation of Calcium chloride (formula CaCl₂). Constituent atoms: Ca, Cl.
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Physical properties
Molar mass110.984 g/mol
State at 20 °Csolid
Density2.15 g/cm³
Melting point1045.00 K (772 °C)
Boiling point2208.00 K (1935 °C)
Solubility (H₂O)74.5 g/100 mL à 20 °C
Structure
Crystal systemOrthorhombic
3D render modeBall-and-stick
Uses and applications
- Road de-icing (effective down to −30 °C)
- Industrial desiccant (drying gases and solvents)
- Food additive E509 (firming agent in canned foods)
- Concrete set accelerator
- Swimming pools (raises calcium hardness)
Safety (GHS)
GHS07 · Harmful / irritant
H statements : H319
Eye irritant. Dissolution in water is exothermic.
Constituent elements
References
Sources : PubChem CID 5284359 · CRC Handbook of Chemistry and Physics
Related processes
Industrial processes involving this compound.