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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 911-302-5 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test item is classified as not persistent in natural environmental media.
Key value for chemical safety assessment
Additional information
In one Key study the test item was determined with natural river water inoculum over a test period of 60 days in an Enhanced Modified Sturm Test according to the OECD Guideline 301 B and ECHA. As result one replicate shows a biodegradation of 79 %, whereas the both other replicates did not reach pass level of 60%. The test item is classified as not persistent in natural environmental media. In a second key study according OECD Guideline 301 B the test item shows biodegradation rates of 33 % after 28 days. Under this test conditions the test item is classified as not readily biodegradable in the 10-day-windows and within 28 days.
Two supporting studies with the read across substance Phosphoric acid, hexadecyl ester, potassium salt showed a degradation of 54% (OECD 301 F) and 37% (OECD 310). One supporting study with read across substance Phosphoric acid, octadecyl ester showed a degradation of 4-5% (OECD 301 F) and one supporting study with Phosphoric acid, octadecyl ester, potassium salt showed a degradation of 3% (OECD 301 E). One supporting study with the read across substance Phospshoric acid, dodecyl ester showed a biodegradation of 93 % (OECD 301 D). The results of these studies demonstrate a reduction of the biodegradability with increasing of the chain length.
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.
