Vol. 6, Issue 11 (2017)

Author(s):
Abdul Rashid Teli, Dr. Muzamil Mogray and Dr. Farhat Tabasum

Abstract:
Phosphate having C-O-P linkage is widely used as fertilizers, pesticides etc. pesticides are generally poisonous or toxic and adversely affected the environment. Study of relative eco-friendly nature of pesticides depends on their bond cleavage and stability during hydrolysis in this connection and investigation of hydrolysis of Mono-4-Chloro3-Metyl Phenyl Phosphate was carried out by using “Allen’s Modified Method” of colorimetry in aqueous medium from 0.1 to 6.0 mol dm-3 HCl at 98o. Ionic strength data exhibits different contribution of natural species and presence of acid catalysis. Theoretical rates estimated from second empirical term of Debye-Hickel equation have been found in close agreement with experimental rates .The effect of ionic strength, temperature, solvent and concentration are provided to identify the reactive species and molecularity . Bimolecular behavior has been decided by the Arrhenius parameters and by the analysis of molecularity data. The monoester involves P-O Bond fission which is strengthened by comparative kinetic data’s.