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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 938-639-0 | CAS number: -
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Based on the value of the logPow, the substance is expected to show some bioaccumulation.
Key value for chemical safety assessment
Additional information
Calculations based on the logKow of 5 with EUSES gave a BCF of 3.55E03. This outcome is expected to be an overestimation of bioaccumulative properties.Calculations with the epiwin model gave much lower values (dimer modelled with logPow 5.0).
The substance is a UVCB. A field study has indicated that relevant individual resin acids as present in crude tall oil oxidised do not bioaccumulate significantly in fish and bioaccumulation is considerably less than that predicted by Log Pow (Nimi, A J, Lee, H B 'Free and conjugated concentrations of nine resin acids in the rainbow trout (Onchorynchus mykiss) following waterborne exposure' Environmental Toxicology and Chemistry 11, 1403-1407, 1992). For the linear acids present in crude tall oil oxidised, uptake and concomitant metabolism is expected following the "normal" fatty acid metabolic pathway.
In addition conducting an experimental study on the whole UVCB would not be technically feasible because of the complexity of the measurements required.
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.
