Silver Nitrate and Sodium Chloride Precipitation

AgNO3 + NaCl → AgCl + NaNO3

概述

Silver nitrate reacts with sodium chloride to form an insoluble white precipitate of silver chloride and soluble sodium nitrate. This is a classic precipitation reaction and the basis of the chloride ion test in analytical chemistry. The white precipitate turns purple in light due to photodecomposition.

参与者

角色 物质 系数 状态
反应物 Silver Nitrate AgNO₃ 1 (aq)
反应物 Sodium Chloride NaCl 1 (aq)
产物 Silver Chloride AgCl 1 (s)
产物 Sodium Nitrate NaNO₃ 1 (aq)

日常示例

The silver chloride test for chloride ions in water analysis uses this reaction, producing a characteristic white curdy precipitate.

工业重要性

该反应用于水质检测中氯化物的定性鉴定、摄影乳剂制备和贵金属分析，是重要的定性分析反应。

属性

类型
Double Replacement
可逆
否
能量
放热
ΔH
-65.5 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 Silver Nitrate and Sodium Chloride Precipitation?
The balanced equation is: AgNO₃ + NaCl → AgCl + NaNO₃.
What type of reaction is Silver Nitrate and Sodium Chloride Precipitation?
Silver Nitrate and Sodium Chloride Precipitation is a double replacement reaction.
Is Silver Nitrate and Sodium Chloride Precipitation exothermic or endothermic?
Silver Nitrate and Sodium Chloride Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -65.5 kJ/mol.