Rubidium tetroxide

Reaction with sodium or potassium hydroxide forms trans-osmate ion, trans-[0s04(0H)2]2 , which is reduced by ethanol to form dark purple [0s i(0)2(0H)4]2 . On the other hand, reaction of osmium tetroxide with rubidium or cesium hydroxide in stoichiometric ratios usually form the ions, [0s04(0H)] and [0s0( j,-0H)0s04] in addition to trans-[0s04(0H)2]27... 

The tetroxides of the alkali metals.—The highest oxide formed by lithium is the dioxide, and with sodium the trioxide potassium, rubidium, and csesium form tetroxides. A. V. Harcourt38 showed that the indications of the higher oxides of potassium observed by J. L. Gay Lussac and L. J. Thenard, and by H. Davy, about 1810, probably represented the formation of potassium tetroxide. The... 

Ruthenium tetroxide dissolves to a slight extent in water. It is also soluble in caustic alkali, from which solutions a black precipitate of finely divided ruthenium is obtained on addition of alcohol.2 Both the aqueous solution and the pure substance itself possess an odour resembling that of ozone. Its vapour, however, is not poisonous like that of the corresponding tetroxide of osmium. In contact with alcohol the solid tetroxide is reduced with explosive violence.3-4 When covered with water, to which a concentrated solution of caesium chloride is subsequently added and a little hydrochloric acid, ruthenium tetroxide is gradually converted into the oxy-salt, Cs2Ru02CI4. The corresponding rubidium salt has likewise been prepared.3... 

It is interesting to note, in passing, that a similar reaction applied to ruthenium tetroxide led Howe (see p. 143) to discover the oxychlor-ruthenates of caesium and rubidium. 

Rubidium peroxide hydrate, RbO-OH,HaOa.—Hydrogen peroxide reacts with rubidium hydroxide in alcoholic solution to form the peroxide hydrate, a white, deliquescent solid, stable below 0° C., but decomposing at higher temperatures with evolution of oxygen, and formation of a substance which is probably a hydrated tetroxide.18... 

TRILEAD TETROXIDE (1314-41-6) An oxidizer. Decomposes above 932°F/500°C, emitting oxygen. Reacts, possibly violently, with reducing agents, powdered metals aluminum, titanium, zirconium, zinc, etc., alcohols, dichloromethylsUane, hydrazine, hydrogen trisulfide, ethers, glycols, peroxyformic acid, phosphorus, selenium oxychloride, sulfur trioxide. Incompatible with ammonium nitrate, diboron tetrafluoride, hydrazinium nitrate, hydrogen sulfide, nitroalkanes, rubidium acetylide, selenium oxychloride. Forms heat-sensitive explosive material with anilinium perchlorate. Increases the thermal and/or explosive sensitivity of 2,4,6-trinitrotoluene, hydrazinium perchlorate, silver azide. Incompatible with sodium, sulfur trioxide. 

---