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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 215-304-0 | CAS number: 1320-51-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The Koc of (hydroxyethyl)urea was calculated with KocWin v2.00 using the measured Log Kow value as starting point. Log Koc values calculated was 0.3062 L/kg.
Key value for chemical safety assessment
- Koc at 20 °C:
- 0.31
Other adsorption coefficients
- Type:
- log Kp (sediment-water)
- Value in L/kg:
- -1.81
Other adsorption coefficients
- Type:
- log Kp (suspended matter-water)
- Value in L/kg:
- -1.509
Other adsorption coefficients
- Type:
- log Kp (soil-water)
- Value in L/kg:
- -2.208
Additional information
The adsorption coefficient (KOC) on soil and on sewage sludge was calculated using the measured log Kow of -1.8 using the KocWIN v 2.00 QSAR which is part of the EPIsuite estimation software. A Koc of 0.31 is used to calculate the Kd (= Kp) values for soil, sediment and suspended sediment of resp 0.0062, 0.0155 and 0.031 L/kg. The corresponding soil-water, sediment-water and suspended matter-water partition coefficients are resp. 0.209, 0.808 and 0.908 m3/m3.
The Kp and partition coefficients will be used for risk assessment.
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.
