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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 214-302-7 | CAS number: 1120-24-7
Endpoint summary
Administrative data
Description of key information
See section Additional information below.
Additional information
ADSORPTION/DESORPTION
Cationic surfactants like the registration substance sorbs strongly to solid phases by van der Waals as well as ionic interactions of the protonated nitrogen. As no data for the registration substance is available, a reliable estimation by QSAR was performed:
The organic carbon normalized adsorption coefficient for soil (Koc) is estimated using the model by Franco and Trapp (2008) for ionisable organic chemicals based on the n-octanol-water partition coefficient for the neutral substance and the pKa. Full details on the model (including references), applicability domain issues, results and interpretation are provided in the attached QMRF/QPRF. The following results were obtained:
Predicted organic carbon normalized adsorption coefficient for soil:
log Koc = 4.4
Predicted partition coefficient solids water (Kp; equivalent to Kd, distribution coefficient for adsorption) for different environmental media:
Kp (Kd) = 500
AIR/WATER PARTITIONING - HENRY'S LAW CONSTANT
Henry's Law Constant Dimensionless Henry Law Constants (HLCs) for members of the DMA category can be estimated with US EPA HENRYWIN Program (v3.20). Using the bond contribution method, dimensionless HLCs range from 0.0191 (C10-DMA) to 0.184 (C18-DMA). However, due to the high pKa value, DMA category members will be almost fully protonated in aquatic environments. Therefore, HLCs were estimated with the same method for the protonated forms (DMA hydrochlorides) and ranged from 1.21E-09 (C10-DMA hydrochloride) to 1.16E-08 (C18-DMA hydrochloride), indicating negligible volatilisation from surface waters. The same conclusion has also been reached within the OECD SIDS for C12-DMA. OECD SIDS N,N-Dimethyldodecylamine. CAS No: 112-18-5 SIDS Initial Assessment Report for SIAM 11. Orlando, United States, 23-26 January 2001.
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.
