Degradation of Organophosphorus Compounds by Hydrolysis in Presence of Metal Cations

Published in Journal

Anusandhan (RNTUJ-AN) [RNTUJ-AN] (Vol:17/ Issue: 26) DOI: [NA]
Authors: Vaishali Naik* C. P. Shinde
Subjects: Technology & Management

Year: March, 2013
Volume: 17 / Issue: 26
Pages: 5-9
Publisher: RNTU
Source:
ISSN: 2278-4187
E-ISSN: 2457-0656
DOI: NA
Published URL:
Published On: March, 2013

Article Details

Degradation of Organophosphorus Compounds by Hydrolysis in Presence of Metal Cations | Original Article

Vaishali Naik* C. P. Shinde in Anusandhan (RNTUJ-AN) | Multidisciplinary Academic Research

ABSTRACT:

Hydrolysis of Ethyl-cyanophos (organophosphorus compounds) has been studied in acidic medium with catalysts such as Zr4+, Ce4+, Hf4+ and Th4+ cations and the rate maxima observed were at around pH 2.0. Since the metal aquo complexes are known to exist in equilibrium with deprotonated species and therefore, metal bound OH- nucleophile might be available abundantly even in acidic aqueous solutions. Thus an interaction of sulphur of P=S group with metal cation followed by an intramolecular nucleophilic attack of hydroxy anion at the ester phosphorus atom would results in cleavage of P-O bond.