Silver Nitrate and Sodium Chloride Precipitation

AgNO3 + NaCl → AgCl + NaNO3

概要

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.

参加者

役割 物質 係数 状態
反応物 Silver Nitrate AgNO₃ 1 (aq)
反応物 Sodium Chloride NaCl 1 (aq)
生成物 Silver Chloride AgCl 1 (s)
生成物 Sodium Nitrate NaNO₃ 1 (aq)

日常の例

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

産業上の重要性

この反応は水質検査、写真（歴史的）、分析化学に使用される。塩化銀は塩化銀参照電極にも使用される。

特性

タイプ
Double Replacement
可逆的
いいえ
エネルギー
発熱性
ΔH
-65.5 kJ/mol

関連する反応

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.