Formation of Calcium Oxide (Quicklime)

2Ca + O2 → 2CaO

概述

Calcium metal reacts with oxygen to form calcium oxide, also known as quicklime. This highly exothermic reaction produces a brilliant white light, historically used in limelight theater lighting. Calcium is a reactive alkaline earth metal that readily oxidizes.

参与者

角色 物质 系数 状态
反应物 Oxygen O 1 (g)
反应物 Calcium Ca 2 (s)
产物 Calcium Oxide CaO 2 (s)

日常示例

Quicklime is used in construction as a component of morite and cement, and in agriculture to raise soil pH.

工业重要性

生石灰（CaO）年产量超3亿吨，是钢铁冶炼（精炼炉渣）、建筑（石灰砂浆）、烟气脱硫和化工生产的基础原料，也是历史上最古老的化工产品之一。

属性

类型
Synthesis
可逆
否
能量
放热
ΔH
-1270.2 kJ/mol

相关反应

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 Oxide (Quicklime)?
The balanced equation is: 2Ca + O₂ → 2CaO.
What type of reaction is Formation of Calcium Oxide (Quicklime)?
Formation of Calcium Oxide (Quicklime) is a synthesis reaction.
Is Formation of Calcium Oxide (Quicklime) exothermic or endothermic?
Formation of Calcium Oxide (Quicklime) is exothermic (releases energy). The enthalpy change (ΔH) is -1270.2 kJ/mol.