Potassium ozonide

A 38.63-mg sample of potassium ozonide, KO3, was heated to 70 °C for 1 h, undergoing a weight loss of 7.10 mg. Write a balanced chemical reaction describing this decomposition reaction. A 29.6-mg sample of impure KO3 experiences a 4.86-mg weight loss when treated under similar condition. What is the %w/w KO3 in the sample ... 

The ozonides are characterized by the presence of the ozonide ion, O - They are generally produced by the reaction of the inorganic oxide and ozone (qv). Two reviews of ozonide chemistry are available (1,117). Sodium ozonide [12058-54-7] NaO potassium ozonide [12030-89-6] 35 rubidium ozonide [12060-04-7] RbO and cesium ozonide [12053-67-7] CsO, have all been reported (1). Ammonium ozonide [12161 -20-5] NH O, and tetramethylammonium ozonide [78657-29-1/, (CH ) NO, have been prepared at low temperatures (118). 

Potassium ozonide Caesium ozonide Ammonium ozonide... 

Reaction of caesium or potassium ozonides with water or aqueous acids is violent, producing oxygen and flashes of light. 

See related METAL peroxides See other METAL OXIDES, OXIDANTS 4657. Potassium trioxide (Potassium ozonide)... 

Potassium oxide in cement, 5 468 in dental ceramics, 8 275 Potassium ozonide, 18 417, 418 Potassium pentaborate tetrahydrate, 4 242t, 276... 

Ozone forms red-brown potassium ozonide, KO3, by reacting with dry potassium hydroxide. Ozonide is obtained by passing oxygen-ozone mixture containing 6 to 8% ozone over dry KOH at -10 to -15°C for several hours, followed by extraction with liquid ammonia at -60°C. Evaporation of the red solution forms red-brown needles of KO3. 

Potassium ozonide, 735 Potassium permanganate chemiluminescence, 643 hydrogen peroxide titration, 627 ozonide redox titration, 736 Potassium peroxymonosulfate, dioxirane preparation, 26, 1020-30, 1130 Potassium superoxide, commercial availability, 620... 

The Ozonide Ion.—The red crystalline substance potassium ozonide, KO3, is obtained by recrystallizing from liquid ammonia the product of reaction of ozone and potassium hydroxide.47 The corresponding ozonides NaO and CsO hasre been shown48 to have magnetic susceptibility corresponding to the presence of the OjT ion with one odd electron. The electronic structure of the ozonide ion is... 

The decomposition of potassium ozonide in aqueous solution appears to involve a chain reaction whose rate is independent of solution pH. The rapid initial reaction is said to be ... 

When ozone (O3) is placed in contact with dry, powdered KOH at —15°C, the red-brown solid potassium ozonide (KO3) forms, according to the following balanced equation ... 

A theoretical investigation has shown the cyclic conformer of O3 to be 16 kcalmor above the preferred open-chain form. The possible experimental significance of such a relatively stable ring conformer was assessed. Further studies on the ring state have been reported in a study of the ground and excited states of ozone. Potassium ozonide dissolved in liquid NH3 absorbs fairly strongly in the... 

Potassium ozonide, KO3 (formed in reaction 15.14), is an unstable red salt which contains the paramagnetic [03] ion (Figure 15.4). Ozonide salts are known for all the alkali metals. The compounds [Me4N][03] and [Et4N][03] have been prepared using reactions of the type shown in equation 15.15. Ozonides are explosive, but [Me4N][03] is relatively stable, decomposing above 348 K (see also Sections 10.6 and 10.8). 

The violent reactions of potassium are quite similar to those of sodium. However, it is more reactive than sodium. Numerous metal salts form explosive mixmres with potassium, which can explode on impact. These include metal halides, oxychlorides, and sulfates. When combined with potassium, a large number of metal oxides bum with incandescence either at room temperature or on heating. Contact of potassium metal with potassium peroxide, potassium superoxide, or potassium ozonide can result in explosions. 

The formation of the simplest amino peroxyl radical, NH2O2, has been observed in the reaction of potassium ozonide with ammonia under photolytic conditions (30) if Raman spectrum has been determined. This radical has also been postulated as an intermediate in the reaction of NH2 with oxygen (31). 

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