Document Abstract
The effect of anionic surfactant (sodium dodecyl sulphate) and non-ionic surfactant (Brij-
35) on the hydrolysis of di-2-methoxy-4-nitroaniline phosphate was studied
spectrophotometrically at 303 K. The influence of salts on the reaction rate was studied.
The presence of inorganic salts (KCl, KNO3, and K2SO4) exhibited positive effect on the
reaction rate. The thermodynamic activation parameters were calculated from Arrhenius
equation. On the basis of the experimental findings a suitable mechanism has been
proposed. The binding constants between the reactants and the surfactants evaluated from
the kinetic models proposed by Menger-Portnoy, Piszkiewicz and Berezin have been
found in good agreement.