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Corsair Clear #34 was not assessed for hydrolysis as this study was technically not feasible.

According to the guideline, the concentration of test samples should not exceed half the water solubility of the test substance or 0.01 M, whichever is lower. The water solubility of the test substance is < 1 mg/l. An analytical method to support the hydrolysis test at this low concentration level was not available. The test on the hydrolysis of the test substance could therefore not be performed.

Ready biodegradability:

Corsair Clear #34 was not readily biodegradable (1 -2% after 29 days) under the conditions of the modified Sturm test (CO2 evolution test) that has been performed.

However, the negative result of the available biodegradation study may be due to the fact that the tested concentration was far above the maximum water solubility. Thus, in view of lack of the optimal contact between the test substance and the medium in the present Modified Sturm test, no definitive conclusions can be drawn with respect to biodegradability of the test substance.

Adsorption/desorption coefficient:

The Koc and log Koc values of the majority of the UV-active components of Corsair Clear #34, i.e. 90.8%, are: >4.3 x 10^5 and >5.63, respectively. Three components with an area percentage between 0.2% and 6% had log Koc values between 4.52 and 5.05.