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Potassium superoxide

Potassium superoxide Structure
Potassium superoxide
  • CAS No.12030-88-5
  • Chemical Name:Potassium superoxide
  • CBNumber:CB7247558
  • Molecular Formula:KO2*
  • Formula Weight:71.1
  • MOL File:12030-88-5.mol
Potassium superoxide Property
  • Melting point 400 °C
  • Density 2,14 g/cm3
  • storage temp. Store at +15°C to +25°C.
  • solubility Soluble in ethanol and ether.
  • form powder
  • color Yellow-green
  • Specific Gravity 2.14
  • PH >7 (H2O, 20℃)
  • Water Solubility reacts
  • Sensitive Air & Moisture Sensitive
  • Stability Stable, but reacts violently with water. Incompatible with moisture, alcohols, strong reducing agents, strong acids, finely powdered metals.
  • CAS DataBase Reference 12030-88-5(CAS DataBase Reference)
  • EWG's Food Scores 1
  • FDA UNII 7YX56J6Q4W
  • NIST Chemistry Reference Potassium superoxide(12030-88-5)
  • EPA Substance Registry System Potassium superoxide (K(O2)) (12030-88-5)
  • UNSPSC Code 12352303
  • NACRES NA.23
Safety
  • Hazard Codes  :O,C
  • Risk Statements  :8-14-34-35
  • Safety Statements  :17-27-36/37/39-8-45-26
  • RIDADR  :UN 2466 5.1/PG 1
  • WGK Germany  :3
  • RTECS  :TT6053000
  • TSCA  :Yes
  • HazardClass  :5.1
  • PackingGroup  :I
  • HS Code  :28259080
  • NFPA 704:
    0
    3 3
    OX
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements H271-H314
  • Precautionary statements P220-P280-P305+P351+P338-P310
Potassium superoxide Price More Price(2)
  • Brand: Sigma-Aldrich(India)
  • Product number: 278904
  • Product name : Potassium dioxide
  • Purity: powder
  • Packaging: 50G
  • Price: ₹6267.68
  • Updated: 2022/06/14
  • Buy: Buy
  • Brand: Sigma-Aldrich(India)
  • Product number: 278904
  • Product name : Potassium dioxide
  • Purity: powder
  • Packaging: 250G
  • Price: ₹12686.9
  • Updated: 2022/06/14
  • Buy: Buy

Potassium superoxide Chemical Properties,Usage,Production

  • Chemical Properties light yellow powder or chunks
  • Uses Potassium oxide is used as a carbon dioxide scrubber, water dehumidifier and oxygen generator. It finds application in rebreathers for fighting with fire and mine rescue work. It is also used in spacecraft, submarines and spacesuit life support systems.
  • Uses Reagent and intermediate.
    One use of potassium superoxide,KO2, is for generating oxygen. It has the ability to absorb carbon dioxide, while giving out oxygen at the same time:
    4KO2(s)+ 2CO2(g)--->2K2CO3(s)+ 3O2(g)
    This property has been made use of in breathing equipment,e.g.for mountaineers, in submarines and in spacecraft.
  • General Description A yellowish to white solid. Melting point 948°F. Mixtures with combustible material readily ignite by friction, heat, or contact with moisture. Prolonged exposure to fire or heat may cause vigorous decomposition of the material and rupturing of the container.
  • Air & Water Reactions Reacts explosively with water [Mellor 2, Supp. 3: 1631. 1963].
  • Reactivity Profile Potassium superoxide is a powerful oxidizer. Forms on the surface of potassium metal, solid or molten, that is exposed to the air. Attempts to extinguish burning potassium with powdered graphite has resulted in violent explosions [Chem. Abstr. 63:424. 1965]. Highly oxidized potassium metal was dropped into a dish of ethyl alcohol, an immediate explosion shattered the dish. Potassium superoxide was considered the cause of the reaction [Health and Safety Inf. 251. 1967]. Potassium superoxide should not be added to pure organic materials (hydrocarbons), as ignition and violent explosion may occur. Oxidation of arsenic, antimony, copper, potassium, tin, or zinc proceeds with incandescence, [Mellor, 1941, Vol. 2, 493]. Interaction between the superoxide and diselenium dichloride is violent, [Mellor, 1947, Vol. 10, 897].
  • Hazard Corrosive to tissue.
  • 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.
  • Safety Profile Explosive reaction when heated with carbon, 2-aminophenol + tetrahydrofuran (at 65°C). Forms a friction- sensitive explosive mixture with hydrocarbons. Violent reaction with lselenium dichloride, ethanol, potassium- sodium alloy. May ignite on contact with organic compounds. Incandescent reaction with metals (e.g., arsenic, antimony, copper, potassium, tin, and zinc). When heated to decomposition it emits toxic fumes of K2O. See also PEROXIDES.
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Potassium superoxide Spectrum
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