CaCl₂CaCl2110.9800 g·mol⁻¹
Molar mass110.980 g·mol⁻¹calc 110.978 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaCaCl₂CaCl2
Classsalt • ionicsolid
| Element | Count | Mass (g/mol) | Mass % |
|---|---|---|---|
| Ca | 1 | 40.078 | 36.11% |
| Cl | 2 | 70.900 | 63.89% |
Physical properties
- State at STP
- solid
- Density
- 2.15 g·cm⁻³ (solid at 20 °C, 1 atm)
- Melting point
- 1045 K (1 atm)
- Boiling point
- 2208 K (1 atm)
Structure & bonding
Ca2+ with 2 Cl-; hygroscopic and forms hydrates.
Occurrence & preparation
By-product of Solvay process; brine purification.
Uses
- De-icing
- Desiccant
Safety
Irritant; exothermic dissolution can heat solution.
Consult current SDS. — consult current SDS before handling.