Registration Dossier

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Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The purpose of this study was to evaluate the hydrolysis of the test item at pH value of 9. The calculated half-lives of the hydrolysis reactions are, 140 days (3349 hours) at temperature 25 °C and 19 days (450 hours) at temperature 50 °C.

Additional information

Hydrolysis

The hydrolysis was examined at pH value 9.0 in the dark at different temperatures of 50 °C (± 0.5), 55 °C (± 0.5) and 67 °C (± 0.5). The hydrolysis reaction was carried out using a dark thermostat to avoid photolytic effects. Nitrogen was bubbled into the water for five minutes before the preparation of the solution in order to exclude oxygen. The calculated half-lives of the hydrolysis reactions are 140 days (3349 hours) at temperature 25 °C and 19 days (450 hours) at temperature 50 °C.