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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)
All the category members were tested for the partition coefficien and the log Kow values are:
STS: -3.18 (20 °C) SXS: -3.12 (20 °C) NH4XS: 0.07 (20 °C) SCS: -1.1 (23 °C)
KCS: -1.4 (22 °C) NH4CS: -1.679 (20 °C)
The results showed low or negative log Kow showing affinity to water compartent.
The highest value of log kow was selected for the risk assessment.
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