Lead Sulfate Precipitation

Pb(NO₃)₂ + Na₂SO₄ → PbSO₄↓ + 2NaNO₃

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Sodium Sulfate Na₂SO₄	1	(aq)
Produto	Sodium Nitrate NaNO₃	2	(aq)

Exemplo do cotidiano

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

Importância industrial

A formação de sulfato de chumbo limita a capacidade das baterias de chumbo-ácido. Compreender e prevenir a sulfatação é fundamental para a longevidade das baterias.

Propriedades

Tipo: Precipitation
Reversível: Não
Energia: Exotérmico
ΔH: -19,0 kJ/mol

Reações relacionadas

Aluminum Hydroxide Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Magnesium Hydroxide Precipitation Copper Sulfide Precipitation Cobalt(II) Hydroxide 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.