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
- 可逆
- 否
- 能量
- 放热
- ΔH
- -65.5 kJ/mol
相关反应
Iron(III) Chloride and Sodium Hydroxide
Calcium Chloride and Sodium Carbonate
Barium Chloride and Sodium Sulfate Precipitation
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Magnesium Hydroxide and Hydrochloric Acid (Antacid)
Lead Nitrate and Potassium Iodide (Golden Rain)
Copper(II) Sulfate and Sodium Hydroxide
Sodium Hydroxide and Iron(III) Chloride (Rust Color)
Sodium Hydroxide and Hydrochloric Acid Neutralization
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.