Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 270-307-4 | CAS number: 68424-50-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Inherently biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, fulfilling specific criteria
Additional information
A study according to OECD 301D has been performed on Fatty acids, tall oil, C12 -15 alkyl esters, sulfated, sodium salts and indicates that no ready biodegradability was observed. Nevertheless the degradation curve is regularly increasing during the whole test, it's not reaching a limit value and microorganisms are not inhibited. Therefore inherently biodegradability can be expected.
In a 2010 Published study the biodegradability order for castor oil > fish oil > rape oil > mineral oil sulphated has been evaluated. In degradation kinetics studies (Luo et al 2010) 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.
A 1976 aerobic biodegradation study with the sodium salt of sulfated castor oil (CAS 68187-76-8) in an activated sludge inoculated system, documented DOC removal consistent with 96% biodegradation in 45 days.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
