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Environmental fate & pathways

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Additional information

5.1.1 Hydrolysis

The substance was considered to be stable at 50 °C for pH-value 7. Therefore it can be assumed that the test item is also stable at 25 °C and no half-life times and hydrolysis rates were calculated. For pH 4 and pH 9 abiotic degradation of the test item was observed. Therefore the substance is considered to be hydrolytically unstable at 50°C for pH values 4 and 9.

5.2.1 Biodegradation in water: screening tests

The test substance showed only 60 % biodegradation after 28 days and therefore has to be classified as "Not Readily Biodegradable". In another test the test substance showed 68 % degradation according OECD guideline 302 D and therefore to be classified as "Not Inherent Biodegradable".

5.3.1 Bioaccumulation: aquatic / sediment:

In accordance with REACH Regulation, Annex IX, column 2, the study does not need to be conducted as the subsance has a low potential for bioaccumulation based on a weighted log Kof of 1.0 (range 0.9 - 1.9).

5.4.1 Adsorption / desorption

An adsorption coefficient (log Koc) was estimated to be <= -0.7 at pH 6.  

The value is corresponding to the area weighed logKoc for all peaks of the test item