Registration Dossier
Registration Dossier
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EC number: 422-930-1 | CAS number: 780759-89-9 JAUNE TZ 4210
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.
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