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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 947-944-8 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Key result
- Temp.:
- ca. 20 °C
- Vapour pressure:
- < 1.28 Pa
- Conclusions:
- The vapour pressure of SOLVENT RED 24 mix is less than 1.28 Pa at 20°C and 25°C.
Reference
Two measurements were performed for temperatures between 23.0 and 44.0°C. However, the mass-loss rate observed during measurements was in the same order of magnitude and even lower than the baseline. Thus a mass increase was observed for measurements making them unusable.
Measurements were then performed at higher temperature (from 99.1 to 157.1 °C) in order to get a significant and exploitable mass-loss.
A first measurement was performed but the substance polluted the furnace during the last isotherm. Therefore, no further measurement was performed to avoid damaging the apparatus.
Results obtained from this measurement do not allow to plot log10(Vapour Pressure (Pa)) against reciprocal temperature and therefore values of vapour pressure were not calculated at 20°C and 25°C as no linear function was obtained. However, the lowest vapour pressure obtained between 99.1 °C and 139.5°C can be used to estimate an upper value of vapor pressure at 20 and 25°C.
In conclusion, the vapour pressure of SOLVENT RED 24 mix is less than 1.28 Pa at 20°C and 25°C.
Description of key information
Key value for chemical safety assessment
- Vapour pressure:
- 1.28 Pa
- at the temperature of:
- 25 °C
Additional information
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.
