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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Link to relevant study record(s)

Description of key information

The ASA Category comprises 5 aromatic sulphonic acids and the relative density are:


TSA, Toluene-4-sulphonic acid (EC 203-180-0, CAS 104-15-4): 1.3453


XSA, (Xylenes and 4-ethylbenzene) sulphonic acid (EC 701-247-3, CAS -) Former EC 246-839-8: 1.3505


CSA, p-cumene sulphonic acid (EC 240-210-1, CAS 16066-35-6): 1.2193


BSA, Benzene sulphonic acid (EC 202-638-7, CAS 98-11-3): 1.3722


HBSA, 4-hydroxybenzensulphonic acid (EC No. 202-691-6, CAS No. 98-67-9): 1.5121


The relative densities of the 5 aromatic sulphonic acids ranged from 1.22 to 1.51.


The highest value has been selected as key value for the Chemical Safety Assessment.

Key value for chemical safety assessment

Relative density at 20C:
1.51

Additional information