Registration Dossier
Registration Dossier
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EC number: 629-764-9 | CAS number: 164524-02-1
Auto flammability
Administrative data
Link to relevant study record(s)
Description of key information
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 except NH4XS were tested for auto-flammability and the values are:
STS > 140 °C
SXS = 320.9 °C
SCS > 400 °C
KCS > 400 °C
NH4CS = 393 °C
All the susbances of the Hydrotropes category showed high auto-ignition temperature.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 140 °C
Additional information
The lowest value was selected for the risk assessment
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