Title:Decomposition Kinetics of 1,1-Dihydroperoxycyclohexane in Some Organic
Solvents
Volume: 20
Issue: 3
Author(s): Nadezhda M. Andriyashina, Stanislav A. Grabovskii*Rustam L. Safiullin
Affiliation:
- Laboratory of Chemical Kinetics, Ufa Institute of Chemistry UFRC RAS, Ufa, Russia
Keywords:
Geminal dihydroperoxide, thermolysis, kinetics, inhibition, rate constant, oxidation.
Abstract:
Background: 1,1-Bishydroperoxides are used as oxidizing agents, radical initiators, in addition,
studies of biological activity show the promise of this area of research.
Objective: There are currently no kinetic data on the thermal stability of these peroxides in various solvents.
Therefore, we investigated the thermal stability of 1,1-dihydroperoxycyclohexane as the most
widely used at present.
Methods: The rate constants and activation parameters were measured at the temperature range of 100-
170°C in the presence of 2-naphthol, which inhibits the induced decomposition of the peroxide by free
radicals. Peroxide concentration was determined by iodometric method.
Results: The rate constants of the reaction with the solvents and of the monomolecular decomposition
of the peroxide were determined.
Conclusion: The use of DHPC as a radical initiator requires taking into account its reactions with the
solvent and/or monomer, in addition to its monomolecular decomposition with the formation of free
radicals.
