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Physical & Chemical properties

Water solubility

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Description of key information

The water solubilities of the 5 aromatic sulphonic acids were all relatively high; ranging from 1117 to 1318 g/L for all except cumene sulphonic acid which had a solubility of 821 g/L.

TSA, Toluene-4-sulphonic acid (EC 203-180-0, CAS 104-15-4): 1154 g/l

XSA, (Xylenes and 4-ethylbenzene) sulphonic acid (EC 701-247-3, CAS -) Former EC 246-839-8: 1156 g/l

CSA, p-cumene sulphonic acid (EC 240-210-1, CAS 16066-35-6): 821 g/l

BSA, Benzene sulphonic acid (EC 202-638-7, CAS 98-11-3): 1117 g/l

HBSA, 4-hydroxybenzensulphonic acid (EC No. 202-691-6, CAS No. 98-67-9): 1318 g/l

A representative value for water solubility of 50000 mg/l has been selected as key value for the Chemical Safety Assessment

Key value for chemical safety assessment

Water solubility:
50 000 mg/L
at the temperature of:
20 °C

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