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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 827-277-8 | CAS number: 1771689-37-2
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:
- 2019-05-02 to 2019-05-13
- 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:
- March 23, 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- August 24, 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- August, 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- OGYÉI- National Institute of Pharmacy and Nutrition (21.04.2016)
- Type of method:
- effusion method: Knudsen cell
- Specific details on test material used for the study:
- Test Item was used in its initial form.
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- Vapour pressure of test item at 20 °C: 1.516 x 10-8 Pa
Vapour pressure of test item at 25 °C: 3.255 x 10-8 Pa - Executive summary:
Vapour pressure of the test item was determined using Vapor Pressure Analyzer (Knudsen Effusion Method) following internationally accepted guidelines (OECD 104, EU Method A.4, OPPTS 830.7950) and under GLP compliance.
The vapour pressure was measured in the temperature range of 110 to 160 °C. For the evaluation the vapour pressure values in the range of 135 to 160 °C were used.
The following results were obtained:
Vapour pressure of test item at 20 °C: 1.516 x 10-8 Pa
Vapour pressure of test item at 25 °C: 3.255 x 10-8 Pa
Reference
The vapour pressure was measured in the temperature range of 110 to 160 °C. For the evaluation the vapour pressure values in the range of 135 to 160 °C were used. The measured vapour pressure values together with the measured temperatures and the regression data of the vapour pressure curve can be seen in Tables 1 and 2, respectively.
Table 1: Results of the Effusion method
| Temperature, °C | Δm/Δt, mg/min | Vapour pressure, Pa |
| 135.0 | 5.0078 x 10-5 | 7.3680 x 10-3 |
| 140.0 | 5.2091 x 10-5 | 7.7109 x 10-3 |
| 145.0 | 6.8733 x 10-5 | 1.0236 x 10-2 |
| 150.0 | 1.0300 x 10-4 | 1.5430 x 10-2 |
| 155.0 | 1.6687 x 10-4 | 2.5146 x 10-2 |
| 160.0 | 3.1379 x 10-4 | 4.7561 x 10-2 |
Table 2: Regression data of the vapour pressure curve - Regression output
| Intercept | Slope | R. Squared |
| 11.9650 | -5799.7396 | 0.9270 |
The vapour pressure of the test item was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20 and 25 °C:
Vapour pressure of test item at 20 °C: 1.516 x 10-8 Pa
Vapour pressure of test item at 25 °C: 3.255 x 10-8 Pa
Description of key information
Vapour pressure of the test item was determined using Vapor Pressure Analyzer (Knudsen Effusion Method) following internationally accepted guidelines (OECD 104, EU Method A.4, OPPTS 830.7950) and under GLP compliance.
The vapour pressure was measured in the temperature range of 110 to 160 °C. For the evaluation the vapour pressure values in the range of 135 to 160 °C were used.
The following result were obtained:
Vapour pressure of test item at 20 °C: 1.516 x 10-8 Pa
Vapour pressure of test item at 25 °C: 3.255 x 10-8 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 0 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.
