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Environmental fate & pathways

Hydrolysis

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Description of key information

The test substance is hydrolitically stable at pH 7

Key value for chemical safety assessment

Half-life for hydrolysis:
1 yr
at the temperature of:
25 °C

Additional information

In a GLP-compliant study according to OECD guideline 111, hydrolysis of the test substance was tested at varying temperatures and as a function of pH (RCC, 2005). In the preliminary test at 50°C, degradations of the test solutions at pH 4, 7 and 9 were in average 9.5%, 0% and 34% respectively. Therefore no further testing was required for pH 4 and pH 7. From the main study the following half-life times were obtained: 199 hours at 50°C, 18 hours at 70°C and 6 hours at 80°C. From these results, the half-life at 25°C was calculated to be 6348 hours (264 days). The test substance is considered to be hydrollitically stable.