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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 283-563-7 | CAS number: 84682-03-1
Endpoint summary
Administrative data
Description of key information
Transport and distribution of zinc 3,5,5 -trimethyl hexanoate in the environment is most accurately evaluated by separately assessing the fate of its constituents zinc cations and trimethyl hexanoate anions.
Zinc
The coefficient for partitioning of zinc between particulate matter and water (Kpsusp) of 109,648 L/Kg was derived for EU waters whereas the Kp for the distribution between sediment and water (Kpsed) was estimated with 73,000 L/kg. For saltwater, a partition coefficient water/suspended matter of 6010 L/kg was derived. For soil, a solids-water partitioning coefficient of 158.5 L/kg was determined experimentally.
Trimethyl hexanoate
The environmental fate of trimethyl hexanoate is (in parts) assessed based on data available for its structural analogue neodecanoic acid. The logKoc of neodecanoic acid is estimated with 121 L/kg). Based on the outcome of the Molecular Connectivity Index (MCI) model of KOCWIN (v 2.00), the logKoc of trimethyl hexanoate is 1.48 (Koc = 30.4 L/kg) whereas a logKoc of 100. 7 (logKoc = 2.0) is predicted when based on the Kow estimate. Trimethyl hexanoate is within the applicability domain of KOCWIN (v.2.00). Since the MCI methodology is more accurate than the log Kow methodology, when based on an estimated log Kow, the MCI model estimate is applied.
Additional information
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.
