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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 940-734-7 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
water solubility (whole substance): <0.1 m/l at 20±0.5°C (measured).
water solubility (individual constituents): <1E-04 mg/l at 20°C (QSAR)
Key value for chemical safety assessment
Additional information
The water solubility of the submission was evaluated using a slow-stir method. The method was designed to be compatible with EU Method A.6 and OECD 105. Since the submission substance is a UVCB, the effect of initial loading rate was also evaluated during the definitive study using initial nominal loading rates of 100 mg/l and 10 mg/l to assess if resulting aqueous concentration or composition of the dissolved fraction were affected. The water solubility of Hydrocarbons, C18 -C24, isoalkanes, <2% aromatics was determined to be <0.1 m/l at 20±0.5°C in both the 100 mg/l and 10 mg/l loading rates.
Since the submission substance is a UVCB substance, the water solubility of the individual constituents is also important for environmental risk assessment. The water solubility of each constituent has been predicted using a validated QSAR estimation method. The prediction method uses a fragment method and water solubility decreases with increasing carbon number. The prediction domain covers carbon chain length in the range C2-C15 carbon atoms, it is therefore expected that water solubility for longer chain length (i.e. greater than C15) compounds will be lower than the predicted value for C15 atom. Thus a limit water solubility value of <1E-04 mg/l was reported for the individual constituents of the submission substance.
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.
