Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

 


At 50 °C, the measured vapour pressures of the 5 aromatic sulphonic acids ranged from 4.9 to 14.7 kPa.


Since the measured values has been performed on 65 % solutions at 35 °C, to have a value to be used for the chemical safety assessment, the calculate values with MPBPVP v1.43 (Modified Grain method) have been considered:


The experimental results are:


Benzene sulphonic acid: 16.7 Pa


p-Toluene sulphonic acid: 1.95 Pa


Hydroxybenzene sulphonic acid: 69.8 Pa


Xylene sulphonic acid: 27.9 Pa


Cumene sulphonic acid: 56.1 Pa


The calculated vapour pressures of the 5 aromatic sulphonic acids ranged from 1.95 to 69.8 Pa at 20 °C.


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

Key value for chemical safety assessment

Vapour pressure:
69.8 Pa
at the temperature of:
20 °C

Additional information