Applying characteristic parameter method of thermokinetics for 2 2 type opposing reactions, thermokinetics of the opposing reaction of nitroethane with trihydroxymethyl aminomethane in cetyltrimethylammonium bromide(CTAB), sodium dodcyl sulfate(SDS) and polycoxyethylene(9,5)p (1,1,3,3 tetramethylbutyl) pheno(Triton X 100) micellar solution was studied at 30℃.The results indicate that the forward reaction of this opposing reaction is catalyzed by CTAB,SDS and Triton X 100 micellar solutions, the backward reaction of this opposing reaction is inhibited by CTAB and SDS micellar solutions, but the backward reaction is not affected nearly by Triton X 100 micellar solution. The catalysis of surfactant micellar solutions on the opposing reaction was discussed with local concentration effect and staticelectricity effect of surfactant micelles.
