It is a yellow paramagnetic solid that decomposes in moist air. Potassium peroxide appears as a yellow granular solid. Potassium superoxide should not be added to pure organic materials (hydrocarbons), as ignition and … 1967]. Potassium superoxide; CAS Number: 12030-88-5; EC Number: 234-746-5; Linear Formula: KO2; find Sigma-Aldrich-P0647 MSDS, related peer-reviewed papers, technical documents, similar products & … (reactive species is the superoxide anion, O2−; solubility of KO2 in aprotic organic solvents is facilitated by crown ethers2, 3 or other phase‐transfer catalysts;4 O2− reacts with most organic substrates either as an anion or as an electron‐transfer (reducing) agent; reacts as a nucleophilic anion toward alkyl halides, sulfonates, and carbonyl groups; other net displacement reactions such as with halocarbons may be initiated by electron transfer; reacts as a basic anion toward substrates bearing acidic protons; used in situ with a variety of activated halogens to form peroxy anions useful for further oxygen transfer, e.g. Anhydrous KOH is rarely found. Product Name Potassium superoxide Cat No. Potassium superoxide react with water to produce potassium hydroxide and oxygen. epoxidations1). (The superoxide of potassium is a yellow solid consisting of K+and O2− ions. Once available inventory is depleted, this item will no longer be available. SDS ... Solubility. One mole of KO2 absorbs 0.5 moles of CO2 but releases only 0.75 moles of oxygen gas (O2) molecules. Theoretically, 1 kg of KO2 absorbs 0.310 kg of CO2 while releasing 0.338 kg of O2. Parcourir une grande sélection de produits Superoxyde de potassium, ACROS Organics™ et pour en savoir plus sur Superoxyde de potassium, ACROS Organics™ 25 g ; The O−O distance is 1.28 Å.[4]. [2] It is a yellow paramagnetic solid that decomposes in moist air. Potassium superoxide. Physical Data: mp 500 °C. Used as a bleach. Potassium superoxide. Since the salt is poorly soluble in nonpolar solvents, crown ethers are typically used. Il s'agit d'un solide jaune résultant de la combustion du potassium fondu dans l'oxygène pur. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. Nous sommes une entrepri ... pays: Germany phone: +49-621-60 0 fax: +49-621-60 42525 ENQUÊTE » coordonnées . 2015, 80, 59-60. Potassium superoxide is the inorganic compound with the formula KO2. Potassium superoxide is a potent oxidizer and can produce explosive reactions when combined with a variety of substances and compounds, including water, acids, organics, or powdered graphite. The lifetime of O 2 •-is strongly affected by the rates of its disproportionation and protonation reactions,16-18 and generally O 2 •-as a dissolved free ion is not obtained easily in aqueous solutions. Potassium superoxide is used as a CO2 scrubber, H2O dehumidifier and O2 generator in rebreathers, spacecraft, submarines and spacesuit life support systems. Brief Profile - Last updated: 11/11/2020 Print. POTASSIUM PEROXIDE is a strong oxidizing agent. 25g; Plastic bottle. aprotic solvents8• Potassium superoxide has limited solubility in aprotic non-aqueous solvents and decomposes to molecular oxygen in hydroxylic solvents. Form Supplied in: small chunks of light yellow powdery solid. [8], Except where otherwise noted, data are given for materials in their, "Superoxide Ion: Generation and Chemical Implications", "The Crystal Structure of α-Potassium Superoxide", https://en.wikipedia.org/w/index.php?title=Potassium_superoxide&oldid=998526416, Articles with changed ChemSpider identifier, Pages using collapsible list with both background and text-align in titlestyle, Articles with disputed statements from April 2017, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 January 2021, at 19:52. Potassium superoxide was considered the cause of the reaction [Health and Safety Inf. The products may themselves be capable of further reactions (such as combustion in the air). Product Name: Potassium superoxide Synonyms: Potassium oxide ; Potassium superoxide ; Potassium dioxide ; Burntpotash ; Cacinedpotash ; K (O 2) ; Potassium oxide super ; Potassium superoxide KO 2 Molecular Formula : KO 2 Molecular Weight : 71.09 Molecular Structure: CAS NO: … Learn about our remote access options. It is a rare example of a stable salt of the superoxide ion. Product % K 2O % SiO 2 % H 2O Description AgSil 21 12.7 26.5 60.9 liquid pH 11.7 AgSil 25 8.3 20.8 70.9 liquid pH 11.3 AgSil 16H 32.4 52.8 14.8 hydrous powder Hydrous AgSil potassium silicate powders can be used in dry mix applications for land spreading. It finds application in rebreathers for fighting with fire and mine rescue work. Our channel. Solubility: reacts: Vapor Presure: 322000mmHg at 25°C: potassium superoxide - Risk and Safety. AgSil potassium silicate provides a soluble source of silicates and supplementary potassium for plants. Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. 1941, Vol [ potassium superoxide solubility ] = 4 KOH + 3 O2 2 in > 7 M has... Synonyms potassium dioxide Recommended Use Laboratory chemicals to molecular oxygen in hydroxylic solvents a base..., pesticide or biocidal Product Use link below to share a full-text version of this,... = 4 KOH + 3 O2 scrubber, water dehumidifier and oxygen is liberated of reactions... Share a full-text version of this reference work: the full text of this article your! May cause vigorous decomposition of the superoxide ion Mellor, 1941, Vol ENQUÊTE coordonnées! 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