Abstract

The rate enhancement for the hydrolysis of p-nitrophenyl acetate (PNPA) and p-nitrophenyl diphenyl phosphate (PNPDPP) by N-benzoyl-N-phenylhydroxylamine (PBHA) was obtained in the presence of gemini i.e. decanediyl-1, 10-bis (cetyldimethylammonium bromide) (C16-10-C16, 2Br−) and monomeric surfactants viz. cetyldiethylethanolammonium bromide (CDEEAB), cetyldimethylethanolammonium bromide (CDMEAB), cetyl-p-toluene-sulfonate (CPTS), and cetylpyridinium bromide (CPB). The physicochemical properties of gemini and monomeric surfactants have also been investigated by conductivity and surface tension measurements. All the kinetic data has been treated by simple pseudophase model.

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