Effect of Micells and the Kinetic Study of Micellar Catalysis Upon the Diclorophnyl Phoshate Ester with Hydroxide Ions

ABSTRACT Micelles of INTRODUCTION Orthophosphoric acid intracts with 2,4-dichlorophenol to form mono-, di-and tri-esters. Hydrolysis of these esters depends upon the experimental conditions. Although it has been known a long ago about the importance of organic phosphate esters which play a great role and are essential for biological and physiological activity in living organism but almost neglible kinetic work has been done till 1942. A systematic approach to the kinetic study of esters of orthophosphoric acid was strated by Sir Alexander tood 22 et al. in the university college, London after 1950. Phosphate esters having C-O-P and C-N-P linkage may be reviewed under separate headings. During recent years a log of work has been performed on the chemical kinetics of (mono-, di-and tri-) substituted esters of orthophosphoric acid. Orthophosphate esters comprised of a group of mono-, di-and tri-esters depending upon the presence of two, one and none hydroxy groups in the phosphate moity of the ester respectively. The micellar effect on the hydrolysis of phosphate monoester is also consistant with the results of inhibition studies [23][24] (Bunton et al). The CTAB catalysed hydrolysis of dinitrophenylphosphate dianion was found to inhibited by low concentrations of number of salts. Simple electrlytes such as sodiumchloride, sodiumsulphate and sodiumtetraborate had a little effect on the micellar catalysis