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Chemistry for Sustainable Development

2005 year, number 2

Synthesis of Peroxides Using Mechanical Activation and Sol-Gel Procedure

I. A. MASSALIMOV
Institute of Mechanics, Ufa Scientific Centre of the Russian Academy of Sciences,
Ul. K. Marksa 12, Ufa 450000 (Russia) E-mail: ismail@bashnet.ru
Pages: 287-290

Abstract

It was established by comparing the results of synthesis of peroxides using mechanical activation of the initial reagent mixture in a disintegrator and controllable precipitation both these procedures of preparation of the initial components lead to the same result: a decrease in synthesis temperature by 100oC. It was demonstrated that in the case of mechanical activation the factor facilitating the course of the solid-phase reaction is excess enthalpy brought into the mixture by the shock action. In the case of chemical activation by the sol-gel procedure, the reaction course is facilitated due to efficient mixing. Simplicity and the possibility of rapid preparation of the initial mixture for the reaction in the solid phase make mechanical activation preferable.