Formation of Sodium Peroxide

2Na + O2 → Na2O2

概要

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.

参加者

役割 物質 係数 状態
反応物 Oxygen O 1 (g)
反応物 Sodium Na 2 (s)

日常の例

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

産業上の重要性

緊急呼吸装置の酸素発生剤、繊維・紙パルプの漂白剤、有機合成の酸化剤として利用される。Na₂O₂はCO₂と反応して酸素を放出するため閉鎖空間での酸素供給に適している。

特性

タイプ
Synthesis
可逆的
いいえ
エネルギー
発熱性
ΔH
-510.9 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 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.