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: 939-538-4 | CAS number: -
For the registration substance no monitoring data are available. But for the structurally similar substance SAS (Secondary Alkane Sulfonate, CAS No. 97489-15-1, already REACH registered) such data are available (see Table). SAS has, as the registration substance, a sulfonate group and an alkyl chain between 12 and 15 carbon atoms. Both substances are readily biodegradable. Based on this facts a read-across to the SAS result is justified.
MONITORING DATA FROM VARIOUS SEWAGE TREATMENT PLANTS (STP)
In the SAS HERA Report (AISE, 2005) monitoring data for SAS in municipal STPs were given which are listed in Table 4.zzz below.
Table 4.zzz Influent & effluent concentrations of STP and associated Removal rates
< 1 µg/L
> 99,7 %
0,54 – 0,89 mg/L
96,9 - >99,9 %
Field et al., 1994
> 99,9 %
> 99,8 %
Reliability criteria of IUCLID are used
Based on the removal rates given in Table 4.zzz an average removal of 99.4 % can be calculated.
MONITORING DATA OF SAS IN SEWAGE SLUDGE
In the SAS HERA Report (AISE, 2005) monitoring data for SAS sewage sludge were given which are listed in Table 4.aaa below.
Table 4.aaa Monitoring data on SAS in Sewage sludge
0,05 g/kg dw.
3 g/kg dw.
< 0,1 g/kg dw.
0,4 g/kg dw,
1,8 g/kg dw.
0,6 g/kg dw.
2,4 g/kg dw.
1,2 g/kg dw.
1,7 g/kg dw.
2,9 g/kg dw.
3,3 g/kg dw.
0,8 g/kg dw.
0,3 g/kg dw.
0,4 g/kg dw.
0,5 g/kg dw.
0,7 g/kg dw.
FATE OF SAS IN SEWAGE TREATMENT PLANTS
Field et al. (1995) have carried out a detailed mass balance investigation on the fate of SAS in the municipal sewage treatment plant of Zurich-Glatt (Figure see AISE HERA SAS, 2005).
15.6% of SAS entering the STP is transfered via primary sludge to anaerobic digester and 84.4% of SAS enters the activated sludge plant. In the activated sludge 84.1% is of SAS is biodegraded and 0.3% of SAS is in the effluent of the STP. This mass balance is used for the environmental exposure assessment of SAS.
MONITORING DATA OF SAS IN GERMAN RIVERS
SAS monitoring data from six German rivers measured at 13 different locations are available (AISE HERA SAS, 2005). At 11 locations the measured SAS concentration was <= 1 µg/L which was the limit of detection. At 2 locations higher SAS concentrations were found but the reliability of these measurements cannot be assigned from the available data (see Table 4.bbb).
Table 4.bbb Monitoring data of SAS in 6 German rivers
No. of Locations
Conc. in river
near STP Munich II
near STP Herrenhausen
Rur, Wurm, Inde
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.
Close Do not show this message again