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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

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Description of key information

The measured Log Pow of the 5 aromatic sulphonic acids is less than 1.0. It ranges from -0.96 to 0.41 and indicates a low partitioning potential between octanol and water.


The logKow results are:


TSA, Toluene-4-sulphonic acid (EC 203-180-0, CAS 104-15-4): -0.96


XSA, (Xylenes and 4-ethylbenzene) sulphonic acid (EC 701-247-3, CAS -) Former EC 246-839-8: 0.12


CSA, p-cumene sulphonic acid (EC 240-210-1, CAS 16066-35-6): 0.41


BSA, Benzene sulphonic acid (EC 202-638-7, CAS 98-11-3): -0.40


HBSA, 4-hydroxybenzensulphonic acid (EC No. 202-691-6, CAS No. 98-67-9): -0.12


 


Data have been measured using the HPLC Method. The highest value has been selected as key value for the Chemical Safety Assessment.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.41
at the temperature of:
25 °C

Additional information