Lead Sulfate Precipitation

Pb(NO3)2 + Na2SO4 → PbSO4↓ + 2NaNO3

概述

Lead nitrate reacts with sodium sulfate to form a white precipitate of lead sulfate (Ksp = 2.5 × 10⁻⁸). PbSO₄ is the discharged form of lead-acid battery electrodes. The mineral form is anglesite, named after Anglesey in Wales.

参与者

角色 物质 系数 状态
反应物 Sodium Sulfate Na₂SO₄ 1 (aq)
产物 Sodium Nitrate NaNO₃ 2 (aq)

日常示例

When a car battery dies, both electrodes have converted to lead sulfate in a process called sulfation, which is reversed by charging.

工业重要性

硫酸铅的生成是铅酸蓄电池极板硫化的根本原因，深度放电或过度放电加速硫化，是制约铅酸电池循环寿命的关键因素，恢复充电脉冲技术可部分逆转硫化。

属性

类型
Precipitation
可逆
否
能量
放热
ΔH
-19.0 kJ/mol

相关反应

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Lead Sulfate Precipitation?
The balanced equation is: Pb(NO₃)₂ + Na₂SO₄ → PbSO₄↓ + 2NaNO₃.
What type of reaction is Lead Sulfate Precipitation?
Lead Sulfate Precipitation is a precipitation reaction.
Is Lead Sulfate Precipitation exothermic or endothermic?
Lead Sulfate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -19.0 kJ/mol.