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Environmental fate & pathways

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A GLP compliant study was performed to determine the abiotic degradation of FAT 40045/Z TE as a function of pH in aqueous solution according to OECD guideline 111 method C.7(440/2008).Results showed that the hydrolysis of FAT 40045/Z TE is negligible within the pH range relevant for natural environments (pH 4 to pH 9). The half-life times at pH 4, 7 and 9 are expected to be above one year at 25 °C in each case. Because the test item is stable to hydrolysis no further hydrolysis tests are necessary.The degradation of FAT 40045/Z TE was less than 10 % at pH 4, pH 7, pH 9 at 50 °C over a period of 120 hours. Therefore the corresponding half- life time at 25 °C can be estimated to be longer than one year.

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