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Name	Sodium superoxide	EINECS	N/A
CAS No.	12034-12-7	Density	2.200
PSA	34.14000	LogP	0.06700
Solubility	N/A	Melting Point	552°C
Formula	NaO2	Boiling Point	N/A
Molecular Weight	54.9886	Flash Point	N/A
Transport Information	N/A	Appearance	N/A
Safety	An oxidizer. When heated to decomposition it emits toxic vapors of Na₂O.	Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Sodiumsuperoxide (6CI,7CI,8CI); Sodium dioxide; Sodium oxide (NaO2)	Article Data	38

Sodium superoxide Chemical Properties

IUPAC Name: Sodium molecular oxygen
Synonyms: Sodium superoxide ; Sodium superoxide [UN2547] [Oxidizer]
CAS NO: 12034-12-7
Molecular Formula of Sodium superoxide (CAS NO.12034-12-7) : NaO₂
Molecular Weight of Sodium superoxide (CAS NO.12034-12-7) : 54.988
Molecular Structure of Sodium superoxide (CAS NO.12034-12-7) :
Enthalpy of Vaporization: 6.8 kJ/mol
Vapour Pressure: 322000 mmHg at 25°C

Sodium superoxide Production

NaO₂ is prepared by treating sodium peroxide with oxygen at high pressures
Na₂O₂ + O₂ → 2 NaO₂
It can also be prepared by careful oxygenation of a solution of sodium in ammonia:
Na + O₂ → NaO₂

Sodium superoxide Safety Profile

An oxidizer. When heated to decomposition it emits toxic vapors of Na₂O.

Sodium superoxide Standards and Recommendations

DOT Classification: 5.1; Label: Oxidizer

Sodium superoxide Specification

1.General Description :A solid. Yellowish at room temperatures but may become white when cooled. Prolonged exposure to fire or heat may cause vigorous decomposition and the rupturing of the containers.
2.Air & Water Reactions: Reacts with moisture and carbon dioxide in the air. Reacts vigorously with water to give oxygen and sodium hydroxide.
3.Reactivity Profile :sodium superoxide violently decomposes above 250°C, evolving oxygen .An oxidizing agent. Reacts with carbon dioxide to give sodium carbonate and oxygen. Mixtures with combustible materials (most organic compounds) are readily ignited by friction, heat, or contact with moisture.
4.Health Hazard: TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Fire may produce irritating and/or toxic gases. Toxic fumes or dust may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Runoff from fire control or dilution water may cause pollution.
5.Fire Hazard: May explode from friction, heat or contamination. These substances will accelerate burning when involved in a fire. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react explosively with hydrocarbons (fuels). Containers may explode when heated. Runoff may create fire or explosion hazard.