Formation of Calcium Oxide (Quicklime)

2Ca + O2 → 2CaO

概要

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.

参加者

役割 物質 係数 状態
反応物 Oxygen O 1 (g)
反応物 Calcium Ca 2 (s)
生成物 Calcium Oxide CaO 2 (s)

日常の例

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

産業上の重要性

酸化カルシウムは製鉄（スラグ形成）、セメント製造、水処理、廃ガス脱硫に大規模で利用される。年間3億トン以上製造される最大量の化学品の一つである。

特性

タイプ
Synthesis
可逆的
いいえ
エネルギー
発熱性
ΔH
-1270.2 kJ/mol

関連する反応

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.