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EC number: 947-851-2 | 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
- Study period:
- 05 February 2018 to 12 April 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:
- other: OECD Test Guideline 113 Screening Test for Thermal Stability and Stability in Air
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- dynamic method
- Remarks:
- Vapour-Liquid Equilibrium (VLE). Also tested using Effusion method: Knudsen cell
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 1.6 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 3 Pa
- Temp.:
- 50 °C
- Vapour pressure:
- 38.5 Pa
- Conclusions:
- In conclusion, the vapour pressure of the test item was determined to be 1.6 Pa at 20°C, 3.0 Pa at 25°C and 38.5 at 50°C.
- Executive summary:
The vapour pressure of the test item was measured by the dynamic method: Vapour-Liquid Equilibrium (VLE) and by the effusion method: Knudsen cell. The vapour pressure of the test item was determined to be 1.6 Pa at 20°C, 3.0 Pa at 25°C and 38.5 at 50°C by interpolation and extrapolation of the measured vapour pressure curve. This study is considered to be reliable without restriction (Klimisch 1) as it was conducted according to OECD Guideline 104 and EU Method A.4.
Reference
Table 1- Calculated vapour pressure values for the test item
Temperature (⁰C) |
Vapour pressure (Pa) |
20 |
1.6 |
25 |
3.0 |
50 |
38.5 |
Table 2- Results from dynamic method
Replicate |
Temperature (⁰C) |
Vapour pressure (Pa) |
1 |
97.8 |
10.1 |
2 |
107.0 |
20.1 |
3 |
119.6 |
39.9 |
4 |
135.6 |
79.8 |
5 |
140.8 |
100.2 |
6 |
150.5 |
150.2 |
Table 3- Results from the effusion method
Replicate |
Temperature (⁰C) |
Vapour pressure (Pa) |
1 |
18.2 |
1.60 |
2 |
21.3 |
2.05 |
3 |
24.3 |
2.12 |
Description of key information
In conclusion, the vapour pressure of the test item was determined to be 1.6 Pa at 20°C, 3.0 Pa at 25°C and 38.5 at 50°C.
Key value for chemical safety assessment
- Vapour pressure:
- 1.6 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test item was measured by the dynamic method: Vapour-Liquid Equilibrium (VLE) and by the effusion method: Knudsen cell. The vapour pressure of the test item was determined to be 1.6 Pa at 20°C, 3.0 Pa at 25°C and 38.5 at 50°C by interpolation and extrapolation of the measured vapour pressure curve. This study is considered to be reliable without restriction (Klimisch 1) as it was conducted according to OECD Guideline 104 and EU Method A.4.
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.
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