Lead Carbonate Precipitation

Pb(NO3)2 + Na2CO3 → PbCO3↓ + 2NaNO3

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Sodium Carbonate Na₂CO₃ 1 (aq)
생성물 Sodium Nitrate NaNO₃ 2 (aq)

일상 속 예시

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

산업적 중요성

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성질

유형
Precipitation
가역 반응
아니오
에너지
발열
ΔH
-22.0 kJ/mol

관련 반응

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.