Formation of Calcium Carbonate from Oxides

CaO + CO2 → CaCO3

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Calcium Oxide CaO 1 (s)
반응물 Carbon Dioxide CO₂ 1 (g)
생성물 Calcium Carbonate CaCO₃ 1 (s)

일상 속 예시

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

산업적 중요성

탄산화 반응을 이용한 CO₂ 포집 및 저장(CCS) 기술에 활용됩니다. 건설 재료의 탄화(탄산화) 현상 이해에 중요하며, 석회 생산 공정 제어에 적용됩니다.

성질

유형
Synthesis
가역 반응
예
에너지
발열
ΔH
-178.3 kJ/mol

관련 반응

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.