Sulfuric Acid and Calcium Carbonate

H2SO4 + CaCO3 → CaSO4 + H2O + CO2

Visão geral

Sulfuric acid reacts with calcium carbonate to form calcium sulfate, water, and carbon dioxide. Unlike HCl, this reaction can be self-limiting because the insoluble calcium sulfate coats the limestone surface, slowing further reaction. This is why HCl is preferred over H₂SO₄ for dissolving limestone.

Participantes

Papel Substância Coeficiente Estado
Reagente Sulfuric Acid H₂SO₄ 1 (aq)
Reagente Calcium Carbonate CaCO₃ 1 (s)
Produto Calcium Sulfate CaSO₄ 1 (s)
Produto Water H₂O 1 (l)
Produto Carbon Dioxide CO₂ 1 (g)

Exemplo do cotidiano

Acid rain containing sulfuric acid damages limestone buildings and marble statues through this reaction, causing surface erosion over decades.

Importância industrial

Esta reação é relevante para a avaliação de danos da chuva ácida, dessulfurização de gases de combustão (lavagem húmida com calcário) e produção de ácido fosfórico a partir de rocha fosfatada.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-26,0 kJ/mol

Reações relacionadas

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Frequently Asked Questions

What is the equation for Sulfuric Acid and Calcium Carbonate?
The balanced equation is: H₂SO₄ + CaCO₃ → CaSO₄ + H₂O + CO₂.
What type of reaction is Sulfuric Acid and Calcium Carbonate?
Sulfuric Acid and Calcium Carbonate is a acid-base reaction.
Is Sulfuric Acid and Calcium Carbonate exothermic or endothermic?
Sulfuric Acid and Calcium Carbonate is exothermic (releases energy). The enthalpy change (ΔH) is -26.0 kJ/mol.