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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 915-277-1 | CAS number: 32052-51-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Testing for adsorption / desorption is not possible because the substance reacts with water, see IUCLID Chapter 5.1.2.
Key value for chemical safety assessment
- Koc at 20 °C:
- 22 570
Additional information
With a calculated Koc of 22570 l/kg, the sorption potential of 2,2,4(or 2,4,4)-trimethylhexane-1,6-diisocyanate to soil or sediment organic matter is expected to be very high (Blume scale). However, environmental distribution considerations for 2,2,4(or 2,4,4)-trimethylhexane-1,6-diisocyanate are of little relevance because the reaction with water is expected to eliminate the substance from the environment rapidly.
The adsorption coefficient of the unpolmerised hydrolysis product 2,2,4(or 2,4,4)-trimethylhexane-1,6-diamine corrected for dissociation was calculated with a QSAR published by Franco and Trapp (2008). The result was Koc = 25, log Koc = 1.40 (pH 7), corresponding to a very low potential for geoaccumulation (Blume scale).
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.
