Lead Sulfate Precipitation

Pb(NO3)2 + Na2SO4 → PbSO4↓ + 2NaNO3

概要

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.

参加者

役割 物質 係数 状態
反応物 Sodium Sulfate Na₂SO₄ 1 (aq)
生成物 Sodium Nitrate NaNO₃ 2 (aq)

日常の例

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

産業上の重要性

硫酸鉛の生成は鉛蓄電池の容量を制限する主要因である。サルフェーションの理解と防止は鉛蓄電池の性能維持と寿命延長において産業的に重要である。

特性

タイプ
Precipitation
可逆的
いいえ
エネルギー
発熱性
ΔH
-19.0 kJ/mol

関連する反応

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.