Registration Dossier
Registration Dossier
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EC number: 304-835-4 | CAS number: 94279-90-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Based on the article (Luo, Xia, Fan, Chen and Peng, 2010)the biodegradability of some fat liquors has been tested in order to establish the environmental impact and the efficiency of the tratment plant.
The biodegradability order is castor oil > fish oil > rape oil > mineral oil. In degradation kinetics studies the degradation rate constant (k) of sulphated castor oil, fish oil and rape oil are 0.87, 0.84, and 0.81 d-1, respectively. These degradation rate constants are slightly faster for the sulfited fatliquor substances where castor, fish and rape were 0.95, 0.93, and 0.85 d-1, respectively.). The higher content of unsaturated fatty acids and hydroxyl groups, the faster is the biodegradability of fatliquors.
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