Formation of Calcium Hydroxide

CaO + H2O → Ca(OH)2

Descripción general

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.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Calcium Oxide CaO 1 (s)
Reactivo Water H₂O 1 (l)
Producto Calcium Hydroxide Ca(OH)₂ 1 (s)

Ejemplo cotidiano

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

Importancia industrial

El hidróxido de calcio se usa en tratamiento de agua, fabricación de papel, refinado de azúcar y como componente en mortero, revoque y cemento de construcción.

Propiedades

Tipo
Synthesis
Reversible
No
Energía
Exotérmico
ΔH
-65,2 kJ/mol

Reacciones relacionadas

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.