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E-mail: purtov@kinetics.nsc.ruReceived November 30, 2011, Accepted February 4, 2012The influence of magnetic fields on chemical processes has long been the subject of interest to researchers. Forthis time numerous investigations show that commonly the effect of a magnetic field on chemical reactions isinsignificant with impact less than 10 percent. However, there are some papers that point to the observation ofexternal magnetic field effect on chemical and biochemical systems actually having a significant impact on thereactions. Thus, of great interest is an active search for rather simple but realistic models, that are based onphysically explicit assumptions and able to account for a strong effect of low magnetic fields. The present worktheoretically deals with two models explaining how an applied weak magnetic field might influence the steadystate of a non-equilibrium chemical system. It is assumed that external magnetic field can have effect on therates of radical reactions occurring in a system. This, in turn, leads to bifurcation of the nonequilibriumstationary state and, thus, to a drastic change in the properties of chemical systems (temperature and reagentconcentration).Key Words : Radicals, Magnetic effects, Nonlinear phenomenaIntroductionThe influence of magnetic fields on chemical processeshas long been the subject of interest to researchers. For thistime physically clear notions have been formed of the factthat though the energy of magnetic interactions is small,under certain conditions relatively weak magnetic fields cannoticeably affect the rates of chemical reactions with theparticipation of paramagnetic particles.

Prediction of a Strong Effect of a Wek Magnetic Field on Diffusion Assisted Reactions in Non Equilibrium Conditions