Formation of Calcium Hydroxide

CaO + H2O → Ca(OH)2

개요

Calcium oxide (quicklime) reacts exothermically with water to form calcium hydroxide (slaked lime). This reaction generates considerable heat and can cause water to boil. It is one of the oldest known chemical reactions, used in construction for millennia.

참여 물질

역할 물질 계수 상태
반응물 Calcium Oxide CaO 1 (s)
반응물 Water H₂O 1 (l)
생성물 Calcium Hydroxide Ca(OH)₂ 1 (s)

일상 속 예시

Self-heating food cans and chemical heating packs sometimes use this reaction between quicklime and water to generate heat.

산업적 중요성

건설 분야의 모르타르 및 미장 재료, 상하수도 처리의 pH 조정제, 토양 안정화, 농업용 석회 살포에 사용됩니다. 제당, 제지 공업에서도 활용됩니다.

성질

유형
Synthesis
가역 반응
아니오
에너지
발열
ΔH
-65.2 kJ/mol

관련 반응

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 Formation of Sulfur Dioxide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Calcium Hydroxide?
The balanced equation is: CaO + H₂O → Ca(OH)₂.
What type of reaction is Formation of Calcium Hydroxide?
Formation of Calcium Hydroxide is a synthesis reaction.
Is Formation of Calcium Hydroxide exothermic or endothermic?
Formation of Calcium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -65.2 kJ/mol.