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Current Microwave Chemistry

Editor-in-Chief

ISSN (Print): 2213-3356
ISSN (Online): 2213-3364

Research Article

A Complete Degradation of Organophosphates by Microwave-Assisted Hydrolysis

Author(s): Petr Jansa, Lucie Cechova and Zlatko Janeba

Volume 3, Issue 3, 2016

Page: [219 - 226] Pages: 8

DOI: 10.2174/2213335602666150917184045

Price: $65

Abstract

Background: Organophosphates form the basis of many well-known insecticides, herbicides, drugs and nerve agents. Since they belong to the most pervasive synthetic chemicals, a highly efficient method for their degradation has been searched for.

Methods: Recently, an efficient microwave-assisted hydrolysis of phosphonate diesters to the corresponding phosphonic acids has been developed. This novel method, employing inexpensive aqueous hydrochloric acid, has been used to study hydrolytic degradation of organophosphates.

Results: The course of the hydrolysis under microwave irradiation was studied on diethyl chlorophosphate, diisopropyl chlorophosphate and paraoxon as model compounds. Subsequently, the complete hydrolysis to benign phosphoric acid has been demonstrated on 20 toxic organophosphates.

Conclusion: The described methodology represents an efficient and environmentally friendly procedure for the degradation of toxic organophosphates with wide range of possible applications, including water detoxification and purification.

Keywords: Hydrolysis, microwave, organophosphates, paraoxon, phosphoric acid, water detoxification.


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