Formation of Calcium Carbonate from Oxides

CaO + CO2 → CaCO3

Descripción general

Calcium oxide reacts with carbon dioxide to form calcium carbonate. This is the reverse of the lime-burning process and occurs naturally in geological carbon sequestration. Limewater (calcium hydroxide solution) turns milky when CO2 is bubbled through due to this reaction.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Calcium Oxide CaO 1 (s)
Reactivo Carbon Dioxide CO₂ 1 (g)
Producto Calcium Carbonate CaCO₃ 1 (s)

Ejemplo cotidiano

The classic limewater test for carbon dioxide relies on this reaction, as the milky precipitate is calcium carbonate.

Importancia industrial

Esta reacción es relevante para la tecnología de captura de carbono y el curado por carbonatación del cemento. También ocurre en la meteorización geológica y en los procesos de formación de rocas.

Propiedades

Tipo
Synthesis
Reversible
Sí
Energía
Exotérmico
ΔH
-178,3 kJ/mol

Reacciones relacionadas

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Calcium Carbonate from Oxides?
The balanced equation is: CaO + CO₂ → CaCO₃.
What type of reaction is Formation of Calcium Carbonate from Oxides?
Formation of Calcium Carbonate from Oxides is a synthesis reaction. It is reversible under certain conditions.
Is Formation of Calcium Carbonate from Oxides exothermic or endothermic?
Formation of Calcium Carbonate from Oxides is exothermic (releases energy). The enthalpy change (ΔH) is -178.3 kJ/mol.