Sodium Fluoride and Calcium Chloride

2NaF + CaCl2 → CaF2 + 2NaCl

概述

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.

参与者

角色 物质 系数 状态
产物 Calcium Fluoride CaF₂ 1 (s)
产物 Sodium Chloride NaCl 2 (aq)

日常示例

Water treatment plants use calcium salts to remove excess fluoride from water by precipitating insoluble calcium fluoride.

工业重要性

氟化钙（萤石/莹石）是冶金熔剂、氟化氢生产和光学材料制造的重要原料，用途广泛且需求量大。

属性

类型
Double Replacement
可逆
否
能量
放热
ΔH
-18.0 kJ/mol

相关反应

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid Aluminum Hydroxide and Hydrochloric Acid

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.