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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 221-518-5 | CAS number: 3130-19-6
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 January 2018 to 31 January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- 1996
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Test Guideline 113 Thermal Stability
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- Under the conditions of this study, the vapour pressure of the test material calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C are: 1.5 ×10^-5, 2.8 ×10^-5 and 4.2 ×10^-4 Pa, respectively.
- Executive summary:
The vapour pressure of the test material was investigated in accordance with the standardised guidelines OECD 104, EU Method A.4 and EPA OCSPP 830.7950, under GLP conditions.
The vapour pressure was measured in the temperature range of 81 to 101 °C using the effusion method with the knudsen cell. From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation were be derived by regression of the data points to allow the vapour pressures at 20, 25 and 50 °C to be calculated.
Under the conditions of this study, the vapour pressure of the test material calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C are: 1.5 ×10^-5, 2.8 ×10^-5 and 4.2 ×10^-4 Pa, respectively.
Reference
Thermal Stability
- In the temperature range of 140 – 240 °C a first exothermic effect can be observed, with a decomposition energy of -40 J/g.
- A further exothermic effect started at 260 °C. The test was terminated at 300 °C.
Effusion Method: Knudson Cell
- The vapour pressure was measured in the temperature range of 81 to 101 °C:
81 °C: Vapour pressure = 7.35 x 10^-3
86 °C: Vapour pressure = 1.03 x 10^-2
91 °C: Vapour pressure = 1.54 x 10^-2
96 °C: Vapour pressure = 2.48 x 10^-2
101 °C: Vapour pressure = 3.45 x 10^-2
- From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation can be derived by regression of the data points to A = 10.6833, B = -4542.78 and C = 273.15.
-The vapour pressure of the test material calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C are: 1.5 ×10^-5, 2.8 ×10^-5 and 4.2 ×10^-4, respectively.
Description of key information
Under the conditions of this study, the vapour pressure of the test material calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C are: 1.5 ×10^-5, 2.8 ×10^-5 and 4.2 ×10^-4 Pa, respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of the test material was investigated in accordance with the standardised guidelines OECD 104, EU Method A.4 and EPA OCSPP 830.7950, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
The vapour pressure was measured in the temperature range of 81 to 101 °C using the effusion method with the knudsen cell. From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation were be derived by regression of the data points to allow the vapour pressures at 20, 25 and 50 °C to be calculated.
Under the conditions of this study, the vapour pressure of the test material calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C are: 1.5 ×10^-5, 2.8 ×10^-5 and 4.2 ×10^-4 Pa, respectively.
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.
