Calcium chloride
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| Chemical formula | CaCl2 |
|---|---|
| OTP appearance | white solid |
| Molar Mass(g/mol) | 110.98 |
| Density(g/cc) | 2.15 |
| Melting Point(°C) | 772-775 |
| Boiling Point(°C) | 1935 |
| Solubility in water(g/L) | 745 |
| Solubility in ethanol(g/L) | 327 |
| NFPA 704 |  0
2
1
|
| Thermal decomposition of calcium chloride hexahydrate | |
| 30 | hexahydrate
30°C tetrahydate |
| 45.5 | tetrahydrate
45.5°C dihydrate |
| 175 | dihydrate
175°C hydrate |
| 260 | hydrate
260°C anhydrous |
Uses
Primary
- Component of DHS AMF (antiarrhytmic and dietary supplement)
- Drying agent
- Deicing agent
- Used in the production of calcium citrate and citric acid
- production of activated charcoal
- flux for sodium chloride in electrolytic production of sodium and chlorine
Natural occurrence
- Calcium chloride occurs naturally as the minerals chlorocalcite, sinjarite and antarcticite
Hazards
- Toxic in quantity
- Irritant
Production
Synthesis
- Mix calcium carbonate and hydrochloric acid
- CaCO3 + 2 HCl → CaCl2 + H2O + CO2