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| Titel: |
Acid hydrolysis of military standard formulations of diazinon |
| Auteur: |
Dennis, W. H. Rosencrance, A. B. Randall, W. F. Meier, E. P. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 15 (1980) nr. 1 pagina's 47-60 |
| Jaar: |
1980 |
| Inhoud: |
Acid hydrolysis is a means of disposal of diazinon, 0,0-diethyl-0-(2-isopropyl-4-methyl-6-pynmidinyl)-phosphorothioate. Procedures were developed for the hydrolysis of three military standard diazinon formulations (47.5% emulsifiable concentrate, 2% dust and 0.5% oil solution). The kinetics of hydrolysis at four temperatures were obtained for each formulation in order to predict the half-life of diazinon between 5° and 50°C. The toxicities of the reaction mixtures were evaluated by aquatic bioassay with bluegill sunfish (Lepomis macrochirus). When the hydrolysis of a formulation had reduced the diazinon concentration by >99.9%, there was less than 50% reduction in the toxicity of the reaction mixture to bluegill sunfish. Analysis of reaction mixtures showed that the toxic component was 0,0,0,0-tetra-ethyldithiopyrophosphate (Sulfotepp), which was present in all diezinon formulations. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 250 gevonden artikelen
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