Formation of Sodium Peroxide

2Na + O2 → Na2O2

概述

When sodium burns in excess oxygen, it forms sodium peroxide rather than sodium oxide. This yellowish-white compound is a powerful oxidizer. Unlike the lighter alkali metals, sodium preferentially forms the peroxide due to the size ratio of the ions.

参与者

角色 物质 系数 状态
反应物 Oxygen O 1 (g)
反应物 Sodium Na 2 (s)

日常示例

Sodium peroxide has been used in submarine air purification systems, reacting with CO2 to release oxygen.

工业重要性

过氧化钠能与CO₂和水反应释放O₂，历史上被用于密闭空间（潜艇、矿井）的氧气再生，现已逐渐被固态氧或液氧系统取代。

属性

类型
Synthesis
可逆
否
能量
放热
ΔH
-510.9 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 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 Sodium Peroxide?
The balanced equation is: 2Na + O₂ → Na₂O₂.
What type of reaction is Formation of Sodium Peroxide?
Formation of Sodium Peroxide is a synthesis reaction.
Is Formation of Sodium Peroxide exothermic or endothermic?
Formation of Sodium Peroxide is exothermic (releases energy). The enthalpy change (ΔH) is -510.9 kJ/mol.