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:

MoO(tpp)(O₂)

dihydrogen peroxide

oxygen

copper hydroxide

Refernces

REACTION OF ORGANIC SULFUR COMPOUNDS WITH SUPEROXIDE ANION-III. OXIDATION OF ORGANIC SULFUR COMPOUNDS TO SULFINIC AND SULFONIC ACIDS

10.1016/S0040-4020(01)97712-9

A study on the oxidation of organic sulfur compounds such as disulfides, thiolsulfinate, thiolsulfonate, thiol, sodium thiolate, and sodium sulfinate using superoxide anion generated from potassium superoxide and 18-crown-6-ether under mild conditions. The research, conducted by Shigeo Oae and colleagues at the University of Tsukuba, demonstrates that these compounds are readily oxidized to both sulfinic and sulfonic acids. The study also notes that sulfide and sulfoxide did not react with the superoxide anion. The oxidation reactions were found to be more effective in polar solvents like pyridine and acetonitrile compared to less polar solvents like benzene. The relative reactivities of the compounds were observed in the order: thiolsulfinate > thiolsulfonate > disulfide = sodium thiolate > sodium sulfinate. The study provides insights into the fundamental nature of the reactions of superoxide anion with organic sulfur compounds and discusses the potential involvement of nucleophilic attack and electron transfer processes in these oxidations.

Regiospecific Opening of Glycidyl Derivatives Mediated by Boron Trifluoride. Asymmetric Synthesis of Ether-Linked Phospholipids

10.1021/jo00280a034

The research focuses on the asymmetric synthesis of unnatural, cytotoxic ether-linked phospholipids, which are biologically active molecules with potential antitumor activity. The key step in this synthesis involves the highly regio- and stereospecific nucleophilic opening of glycidyl derivatives using boron trifluoride etherate as a catalyst, yielding enantiomeric excess of over 94%. The study successfully developed a short and efficient method to produce enantiomerically pure 1-O-alkyl-2-O-methyl-sn-glycero-3-phosphocholine (5a) and 3-O-alkyl-2-O-methyl-1-sn-glycero-phosphocholine (5b) from optically active glycidyl derivatives, which can be used to study the mechanism of cytotoxic activity and tumor specificity of these anti-neoplastic agents. The chemicals used in the process include p-toluenesulfonate and tert-butyldiphenylsilyl ether derivatives of (R)- and (S)-glycidol, 1-hexadecanol, and various reagents for the subsequent steps of the synthesis, such as methyl triflate, potassium superoxide, and 2-chloro-2-oxo-1,3,2-dioxaphospholane.