PMID: 11312855Apr 21, 2001Paper

The formation of 2-chlorobenzamide upon hydrolysis of the benzoylphenylurea insecticide 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea in different water systems

Journal of Agricultural and Food Chemistry
L GuoguangL Wenying

Abstract

It has been reported that 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea (CCU), an insect growth regulator, has no measurable toxicity to nontarget organisms and is essentially harmless to humans. However, one of its degradation products, 2-chlorobenzamide (CBA), is suspected of being a carcinogen. Therefore, the maximum concentration of CBA formed and the dynamics of its formation need to be given careful attention after CCU is used in the field. This paper describes the degradation of CCU to form CBA in three different water systems (distilled water, spring water, and simulated seawater) and the effects of temperature on the dynamics of CBA formation. The results indicate that the maximum level of CBA concentration is different in the different systems (highest in spring water) and that the temperature has a significant impact on the process (higher temperature leads to higher and earlier peak of CBA concentration). The maximum concentration of CBA after application of CCU was approximately 3.8% of the initial concentration of CCU at 35 degrees C in distilled water, and 2.4% in spring water at 25 degrees C.

References

May 1, 1975·Journal of Agricultural and Food Chemistry·R L MetcalfS Bowlus
Mar 1, 1980·Journal of Agricultural and Food Chemistry·T Dumas

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Citations

Apr 5, 2011·The Science of the Total Environment·Erland BjörklundBent Halling-Sørensen
Nov 2, 2014·Environmental Toxicology·Tayrine Paschoaletti BenzeMarisa Narciso Fernandes
Sep 1, 2012·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Haiying LinQingxiang Zhou

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