Sodium Fluoride and Calcium Chloride
2NaF + CaCl2 → CaF2 + 2NaCl
Overview
Sodium fluoride reacts with calcium chloride to form insoluble calcium fluoride (fluorite) and sodium chloride. Calcium fluoride is a mineral used in optics and metallurgy. This precipitation reaction is used in fluoride removal from water.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Product | Calcium Fluoride CaF₂ | 1 | (s) |
| Product | Sodium Chloride NaCl | 2 | (aq) |
Everyday Example
Water treatment plants use calcium salts to remove excess fluoride from water by precipitating insoluble calcium fluoride.
Industrial Importance
Calcium fluoride (fluorite or fluorspar) is used as a flux in steelmaking, in the production of hydrofluoric acid, and in optical components.
Properties
- Type
- Double Replacement
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -18.0 kJ/mol
Related Reactions
Aluminum Hydroxide and Hydrochloric Acid
Ammonia and Hydrochloric Acid (White Smoke)
Barium Chloride and Sodium Sulfate Precipitation
Calcium Carbonate and Hydrochloric Acid
Calcium Chloride and Sodium Carbonate
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Calcium Hydroxide and Sulfuric Acid
Copper(II) Sulfate and Sodium Hydroxide
Iron(III) Chloride and Sodium Hydroxide
Lead Nitrate and Potassium Iodide (Golden Rain)
Frequently Asked Questions
What is the equation for Sodium Fluoride and Calcium Chloride?
The balanced equation is: 2NaF + CaCl₂ → CaF₂ + 2NaCl.
What type of reaction is Sodium Fluoride and Calcium Chloride?
Sodium Fluoride and Calcium Chloride is a double replacement reaction.
Is Sodium Fluoride and Calcium Chloride exothermic or endothermic?
Sodium Fluoride and Calcium Chloride is exothermic (releases energy). The enthalpy change (ΔH) is -18.0 kJ/mol.