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: 282-968-6
CAS number: 84501-49-5
log Koc = 2.07 (experimental data)
Since no reliable adsorption tests are available for C9-11AS Na (CAS
84501-49-5), in accordance to Regulation (EC) No. 1907/2006 Annex XI,
1.5 a read-across to other structurally related category members was
conducted. Read-across data from C9AS Na (CAS 1072-15-7), C10AS Na (CAS
142-87-0) and C11AS Na (CAS n.a.) were used.
In the publication of Marchesi et al. (1991), sediment sorption data for
several alkyl sulfates with different carbon chain lengths are
presented. The determined Koc values are:
- for C9AS Na (CAS 1072-15-7) between 118 and 147 which corresponds to
log Koc values in the range of 2.07 and 2.17
- for C10AS Na (CAS 142-87-0) between 122 and 178 which corresponds to
log Koc values in the range of 2.09 and 2.25
- for C11AS Na (CAS n.a.) between 346 and 368, which corresponds to log
Koc values in the range of 2.54 and 2.57
Due to structural and property similarities with the tested category
members these results apply also to C9-11AS Na (CAS 84501-49-5). The Koc
range is between 118 and 368 corresponding to the log Koc range between
2.07 and 2.57. Adsorption of the substance to soil or sediment is
therefore low. For the PNEC sediment and soil derivation according to
the equilibrium partitioning method (EPM), the lower boundary of the
range (Koc = 118) was taken into account, since this value represents
the worst case scenario for the chemical safety 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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again