Lead Sulfate Precipitation

Pb(NO₃)₂ + Na₂SO₄ → PbSO₄↓ + 2NaNO₃

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Sodium Sulfate Na₂SO₄	1	(aq)
Sản phẩm	Sodium Nitrate NaNO₃	2	(aq)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Lead sulfate formation limits lead-acid battery capacity. Understanding and preventing sulfation is key to battery longevity.

Tính chất

Loại: Precipitation
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -19,0 kJ/mol

Phản ứng liên quan

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.