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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 701-164-2 | CAS number: -
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
The registered substance is a reaction products of C16-18 (even numbered), C18 unsaturated alkylamines with C10-13 alkylbenzenesulfonic acid (EC 701-164-2). The reaction mass is constited by both part (alkylamine and alkylbenzene sulfonic acid) are generally present with a 1:1 ratio. Due to the complex composition of the registered uvcb, the radio labeling of the reaction mass will be technically challenging and is highly unlikely to provide useful information as to the fate of the test material. Moreover the very low water solubility and the high adsorption properties can lead to difficulties to recover the test material from the matrix.
However, in a Weight of Evidence simulation test in soil data are available. These data are conducted on a representative constituent of both type of chemical with constituted the reaction mass (EC 701-164-2).
C10-13 alkylbenzenesulfonic acid simulation test in soil:
Ward and Larson (1989) conducted a laboratory study and observed the biodegradation rate constant and half-life for C12-LAS in sludge-amended soil. The biodegradation rate constant for C12-LAS is 0.030 day-1and the half-life for C12-LAS is 23.1 days in soil at 20°C.
“Amines, C16-18 and C18-unsatd alkyl” simulation test in soil:
An OECD 307 aerobic soil transformation study (3 soils) was carried out with [1-14C]-Hexadecanamine (Harlan, 2010). Although this C16 amine is strongly sorbing to soil (median Kpsoil of 3875 L/kg at lowest measured concentration) half-lives between 8.1 and 9 days at 20 degree C were determined. The median Half-life of 8.9 d at 20 degree C corresponds to a median Half-life of 16.9 d at an environmental temperature of 12 degree C. The properties of the 'Amines, C16-18 and C18-unsatd alkyl' have been established in the framework of a category approach on primary fatty amines.
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.
