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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 614-295-4 | CAS number: 68131-40-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Softanol 30 is readily biodegradable as determined in two tests (Mitsubishi, 2006, report no. A060107 and LISEC, 1998, report no. WB-08-043).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
In the MITI test (Mitsubishi, 2006, report no. A060107), Softanol 30 underwent >98% degradation based on the residual amount of substance left on completion of the test and 65% degradation based on biochemical oxygen demand. The conclusion reached is that the substance is readily biodegradable.
In the respirometer test (LISEC, 1998, report no. WB-08 -043), Softanol 30 was found to undergo 54 % degradation (mean of 53 and 55%) based on theoretical oxygen demand (nitrate) and 60% degradation (mean of 59% and 61%) based on chemical oxygen demand. It is considered that the result for chemical oxygen demand takes precedence over the result based on theoretical oxygen demand because the latter relies on calculation of percent carbon content which is difficult to derive accurately for a substance complex mixture such as Softanol 30. The result of 60% meets the required criteria to be considered readily biodegradable except that it is not achieved during the 10 -window specified by the test method. However, according to ECHA guidance Chapter 7B, R.7.9.4.1 (p177) the 10 -day window is waived for substances comprising a mixture of homologous compounds such as technical surfactants, and as Softanol 30 is such a substance, 60% degradation is sufficient to show that it is readily biodegradable. The respirometer test therefore supports the conclusion of the MITI test.
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.
