Formation of Sodium Peroxide

2Na + O2 → Na2O2

Aperçu

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.

Participants

Rôle Substance Coefficient État
Réactif Oxygen O 1 (g)
Réactif Sodium Na 2 (s)

Exemple du quotidien

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

Importance industrielle

Used as an oxygen-generating agent in emergency breathing apparatus, as a bleaching agent for textiles, and as a powerful oxidizer in organic chemistry.

Propriétés

Type
Synthesis
Réversible
Non
Énergie
Exothermique
ΔH
-510,9 kJ/mol

Réactions associées

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.