Potassium superoxide

Base Information

• Chemical Name: Potassium superoxide
• CAS No.: 12030-88-5
• Molecular Formula: K*O₂
• Molecular Weight: 71.0971
• Hs Code.: 28259080
• Mol file: 12030-88-5.mol

Synonyms:Potassiumsuperoxide (6CI,8CI); Potassium dioxide; Potassium oxide (KO2)

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Chemical Property of Potassium superoxide

Chemical Property:

• Appearance/Colour: light yellow powder or chunks
• Vapor Pressure: 322000mmHg at 25°C
• Melting Point: 400 ºC
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 23.06000
• Density: g/cm³
• LogP: -0.23760
• Storage Temp.: Store at +15°C to +25°C.
• Sensitive.: Air & Moisture Sensitive
• Solubility.: Soluble in ethanol and ether.
• Water Solubility.: reacts

Purity/Quality:

Safty Information:

• Hazard Codes: O,C
• Statements: 8-14-34-35
• Safety Statements: 17-27-36/37/39-8-45-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• 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. 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.

Technology Process of Potassium superoxide

There total 14 articles about Potassium superoxide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

oxygen (80937-33-3) + potassium (7440-09-7) → potassium superoxide (12030-88-5)

Guidance literature:

With N₂; In gaseous matrix; pulsed photolysis of potassium salt vapour in an excess of O2 and bath gas N2 over temp. range 250-1103 K; Kinetics;

DOI:10.1021/j100373a053

Reference yield:

oxygen (80937-33-3) → potassium superoxide (12030-88-5)

Guidance literature:

With KBr; In ammonia; NH3 (liquid); Electrochem. Process; controlled-potential coulometry with bubbling of O2 into soln.; evapn., drying in vac., determination by the decomposition to O2;

DOI:10.1021/ic00138a048

Reference yield:

benzhydrol potassium salt (1204-49-5) + oxygen-18 (32767-18-3) → potassium superoxide, (18)O-labeled (12030-88-5)

Guidance literature:

In not given; in one of four attempts, this react. caused an explosion poweful enough to disintegrate the react. flask;

DOI:10.1021/ja012722b

upstream raw materials:

oxygen

potassium

dihydrogen peroxide

potassium tert-butylate

Downstream raw materials:

[K*dibenzo-18-crown-6][Al₂Me₆O₂]*(n)C₆H₅Me

MoO(tpp)(O₂)

[(O₂)Fe(C₂₀H₈N₄(C₆H₂(CH₃)3)3)(C₃N₂H₃CH₂C₆H₄CONHC₆H₄)]^(1-)

[(tmpIm)Fe(III)OOH]

Refernces

• 1、 Dees, Anne,Jux, Norbert,Tr?ppner, Oliver,Dürr, Katharina,Lippert, Rainer,Schmid, Martin,Küstner, Bernd,Schlücker, Sebastian,Steinrück, Hans-Peter,Gottfried, J. Michael,Ivanovi?-Burmazovi?, Ivana. "Reactions of Superoxide with Iron Porphyrins in the Bulk and the Near-Surface Region of Ionic Liquids". . p. 6862 - 6872. Retrieved 2015.
• 2、 Wright, Timothy G.,Ellis, Andrew M.,Dyke, John M.. "A study of the products of the gas-phase reactions M + N2O and M + O3, where M = Na or K, with ultraviolet photoelectron spectroscopy". . p. 2891 - 2907. Retrieved 1993.
• 3、 Frisch, Gero,R?hr, Caroline. "Missing links in known series: The oxoferrates(III) Rb8[Fe 2O7], Rb6[Fe2O6], and K4[Fe2O5]". . p. 732 - 740. Retrieved 2005.
• 4、 Gaffar,Omar. "Thermal analytical study of different phases of potassium hexacyanoferrate(II) crystal : Effects of growth conditions, heat treatment and γ-irradiation on the unit cell parameters". . p. 477 - 487. Retrieved 2005.
• 5、 Sviridov, V. V.,Lesnikovich, A. I.,Levchik, S. V.,Kovalenko, K. K.,Guslev, V. G.. "". . p. 341 - 356. Retrieved 1984.
• 6、 Desreumaux, Jacqueline,Calais, Marielle,Adriano, Rene?,Trambaud, Serge,Kappenstein, Charles,Nguefack, Marcel. "Reactions of sodium-potassium alloys with inert gas impurities - Potential hazards after oxidation". . p. 2031 - 2045. Retrieved 2000.