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12034-12-7

12034-12-7 Structure

12034-12-7 Structure
IdentificationBack Directory
[Name]

sodium superoxide
[CAS]

12034-12-7
[Synonyms]

SODIUM SUPEROXIDE
sodium,molecular oxygen
USSXBCNWHSJQOH-UHFFFAOYSA-N
SodiuM superoxide(Na(O2)) (9CI)
[Molecular Formula]

NaO2
[MOL File]

12034-12-7.mol
[Molecular Weight]

54.99
Chemical PropertiesBack Directory
[Melting point ]

552°C
[density ]

2.200
[solubility ]

reacts with H2O
[form ]

yellow cubic crystals
[color ]

yellow cubic crystals, crystalline
[EPA Substance Registry System]

Sodium superoxide (Na(O2)) (12034-12-7)
Safety DataBack Directory
[RIDADR ]

UN 2547 5.1/ PGI
[HazardClass ]

5.1
[PackingGroup ]

I
[Safety Profile]

An oxidizer. When heated to decomposition it emits toxic vapors of Na2O.
Hazard InformationBack Directory
[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.
[Air & Water Reactions]

Reacts with moisture and carbon dioxide in the air. Reacts vigorously with water to give oxygen and sodium hydroxide.
[Reactivity Profile]

sodium superoxide violently decomposes above 250°C, evolving oxygen [Mellor 2 Supp. 2:639 1961]. 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.
[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.
[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.
[Chemical Properties]

Sodium superoxide, NaO2, is a yellow solid.
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