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EC number: 943-024-5
CAS number: -
The HYDROTOPES Category comprises the following 6 substances: STS - Sodium toluene 4-sulphonate (CAS 657-84-1, EC 211-522-5)SXS - Sodium (xylenes and 4-ethylbenzene) sulphonate (EC 701-037-1)NH4XS - Ammonium (xylenes and 4-ethylbenzene) sulphonate (EC 943-024-5)SCS - Sodium p-cumenesulphonate (CAS 15763-76-5, EC 239-854-6)KCS - Potassium p-cumenesulphonate (CAS 164524-02-1, EC 629-764-9)NH4CS - Ammonium p-cumenesulphonate (CAS 680972-33-2, EC 811-484-5) In addition CaXS (Calcium Xylenesulphonate, CAS 28088-63-3, EC 248-829-9) was evaluated for complete the assessment despite it is not registered under REACH.
The members of the hydrotrope category are all readily biodegradable with low logPow. It can be assumed that they will be completely biologically degraded within the STP process. Therefore tests on sediment organisms are not provided. Since the physicochemical data indicate that the substances are unlikely to be bioaccumulative (low log Kow), a significant distribution into the sediment compartment and a significant exposure of sediment organisms is not expected. Hence, information about effects on sediment organisms is not required. For the purposes of the risk assessment, PNEC aqua are converted to PNEC sediment using the equilibrium partitioning method.
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.
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