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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

FAT 40549/A was not readily and not inherently biodegradable.

Additional information

The ready biodegradability of FAT 40'549/A was investigated in the "Manometric Respirometry Test" over a period of 28 days. Only a very slight biochemical oxygen demand (2 mg O2/l) was measured for the test article in the two test flasks over the 28-day exposure period. Therefore, FAT 40'549/A was found to be practically non-biodegradable (2.7 %) under the test conditions over 28 days.

The inherent biodegradability of FAT 40'549/A was investigated in the "28-Day Zahn-Wellens / EMPA Test". The mean concentration of DOC (Dissolved Organic Carbon) in the test flasks containing the test article varied from 57.0 mg/l to 61.9 mg/l over the exposure period of 28 days and was higher in comparison to the initial mean DOC concentration of 56.2 mg/l measured on day 0 after 3 hours of exposure. Practically no DOC-removal was observed during the first three hours of exposure. Consequently, FAT 40'549/A was found to be non-biodegradable over the 28-day test period.