Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-200-0 | CAS number: 117-61-3
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure of Benzidine-2,2’-disulphonic acid was estimated as 3.24E-018 mm Hg at 25 deg C by Modified Grain Method. Thus, it can be concluded that the chemical has very low vapour pressure. This value when converted into Pascal is equivalent to 0.000000000000000431 Pa.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
Vapour pressure of Benzidine-2,2’-disulphonic acid was estimated as 3.24E-018 mm Hg at 25 deg C by Modified Grain Method. Thus, it can be concluded that the chemical has very low vapour pressure. This value when converted into Pascal is equivalent to 0.000000000000000431 Pa. The key value for the chemical safety assessment is taken to be less than 0.000000001 Pa
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
