Since the early 1930's, Soviet chemists have played a lead­ ing role in the study of unfamiliar oxidation state compounds of the peroxide, superoxide, and ozonide types. Interest in the alkali and alkaline earth metal derivatives is now widespread and diverse, and numerous practical applications of these com­ pounds have evolved, ranging from their use as air revitaliza­ tion materials in space cabins to their use in compounding semiconductor materials. Professor Vol'nov is eminently qualified to write this monograph since for many years he has been a leading investi­ gator and prolific writer in the field of peroxide, superoxide, and ozonide chemistry. He has succeeded in presenting a lucid and detailed discussion of past work, the present state, and the future potential of this area of unfamiliar oxidation state chemistry. Of particular interest is Professor Vol 'nov's extensive compilation of available thermodynamic, kinetic, and structural data for the alkali and alkaline earth peroxides, superoxides, and ozonides. In addition, he has reviewed the known methods of synthesis, as well as the practical applications for which these compounds are suited. This monograph will be of interest and value to chemists, not only for the information it imparts, but equally for the information it does not impart, thereby illuminating the re­ search paths and investigation which must be undertaken in order to increase our knowledge concerning the chemistry of this important class of chemical compounds.

Introduction: The Present State and Future Investigations in the Field of Inorganic Peroxide Compounds.- One Classification and Nomenclature of Inorganic Peroxide Compounds.- References.- Two Peroxides of the Group One Metals of the Periodic Table.- Lithium Peroxide-Li2O2.- Sodium Peroxide-Na2O2.- Potassium Peroxide-K2O2.- Rubidium Peroxide-Rb2O2.- Cesium Peroxide-Cs2O2.- Ammonium Peroxide-(NH4)2O2.- References.- Three Peroxides of the Group Two Elements of the Periodic Table.- Alkaline Earth Peroxides.- Magnesium Peroxide and Peroxides of the Zinc Subgroup Metals.- References.- Four Superoxides of the Alkali and Alkaline Earth Metals.- The Hydroperoxyl Radical-HO2.- Lithium Superoxide-LiO2.- Sodium Superoxide-NaO2.- Potassium Superoxide-KO2.- Rubidium Superoxide-RbO2.- Cesium Superoxide-CsO2.- The Alkaline Earth Metal Superoxides -Ca(O2)2, Sr(O2)2, Ba(O2)2.- References.- Five Alkali Metal Ozonides.- Lithium Ozonide-LiO3.- Sodium Ozonide-NaO3.- Potassium Ozonide-KO3.- Rubidium and Cesium Ozonides-RbO3, CsO3.- Ammonium and Tetramethylammonium Ozonides-NH4O3, (CH3)4NO3.- The Reaction Mechanism for the Formation of Alkali Metal Ozonides.- Alkaline Earth Metal Ozonides-M(O3)2.- References.- Conclusion.