Lead Carbonate Precipitation

Pb(NO₃)₂ + Na₂CO₃ → PbCO₃↓ + 2NaNO₃

Descripción general

Lead nitrate reacts with sodium carbonate to form a white precipitate of lead carbonate (Ksp = 7.4 × 10⁻¹⁴). Basic lead carbonate (2PbCO₃·Pb(OH)₂), known as white lead, was the most important white pigment for millennia until its toxicity led to replacement by titanium dioxide.

Participantes

Rol	Sustancia	Coeficiente	Estado
Reactivo	Sodium Carbonate Na₂CO₃	1	(aq)
Producto	Sodium Nitrate NaNO₃	2	(aq)

Ejemplo cotidiano

White lead paint was used in homes for centuries before being banned due to lead poisoning, especially dangerous for children.

Importancia industrial

El carbonato de plomo (plomo blanco) ha sido reemplazado por el TiO₂ en pinturas. Comprender la precipitación del plomo es importante para la remediación de la contaminación por plomo en suelos y aguas.

Propiedades

Tipo: Precipitation
Reversible: No
Energía: Exotérmico
ΔH: -22,0 kJ/mol

Reacciones relacionadas

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 Chloride Precipitation Calcium Carbonate Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Lead Carbonate Precipitation?

The balanced equation is: Pb(NO₃)₂ + Na₂CO₃ → PbCO₃↓ + 2NaNO₃.

What type of reaction is Lead Carbonate Precipitation?

Lead Carbonate Precipitation is a precipitation reaction.

Is Lead Carbonate Precipitation exothermic or endothermic?

Lead Carbonate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -22.0 kJ/mol.