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.
Current Microwave Chemistry
Title:A Complete Degradation of Organophosphates by Microwave-Assisted Hydrolysis
Volume: 3 Issue: 3
Author(s): Petr Jansa, Lucie Cechova and Zlatko Janeba
Affiliation:
Keywords: Hydrolysis, microwave, organophosphates, paraoxon, phosphoric acid, water detoxification.
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.
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Cite this article as:
Jansa Petr, Cechova Lucie and Janeba Zlatko, A Complete Degradation of Organophosphates by Microwave-Assisted Hydrolysis, Current Microwave Chemistry 2016; 3 (3) . https://dx.doi.org/10.2174/2213335602666150917184045
DOI https://dx.doi.org/10.2174/2213335602666150917184045 |
Print ISSN 2213-3356 |
Publisher Name Bentham Science Publisher |
Online ISSN 2213-3364 |
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