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EC number: 265-314-4 | CAS number: 65036-46-6
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:
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 mm Hg
- Conclusions:
- The vapour pressure of the test item can be estimated as follows:
P = 5.13 x 10 -2
Pa = 3.85 x 10 -4 mmHg at 20°C - Executive summary:
This study was performed to determine the vapour pressure of the test item supplied by the Sponsor according to: OECD Guideline No. 104, EC method A.4, EPA Guideline OPPTS 830.7950 (1996).
Pa = 3.85 x 10-4 mmHg at 20 degrees Celsius
Reference
Temperature [°C] |
Dm [mg] |
Dt [min] |
Temperature [K] |
34.8 |
0.0694 |
80 |
307.95 |
34.8 |
0.0804 |
80 |
307.95 |
40.5 |
0.0838 |
80 |
313.65 |
40.5 |
0.0823 |
80 |
313.65 |
46.8 |
0.1044 |
80 |
319.95 |
46.7 |
0.1055 |
80 |
319.85 |
60.3 |
0.1101 |
80 |
333.45 |
60.4 |
0.1162 |
80 |
333.55 |
67.3 |
0.1170 |
80 |
340.45 |
67.2 |
0.1186 |
80 |
340.35 |
74.5 |
0.1278 |
80 |
347.65 |
74.6 |
0.1220 |
80 |
347.75 |
82.7 |
0.1366 |
80 |
355.85 |
82.6 |
0.1309 |
80 |
355.75 |
1/Temperature [1/K] |
Dm/Dt [kg/s] |
Vapour pressure [Pa] |
log p |
3.25E-03 |
1.45E-11 |
5.62E-02 |
-1.2500 |
3.25E-03 |
1.68E-11 |
6.52E-02 |
-1.1861 |
3.19E-03 |
1.75E-11 |
6.85E-02 |
-1.1641 |
3.19E-03 |
1.71E-11 |
6.73E-02 |
-1.1719 |
3.13E-03 |
2.18E-11 |
8.62E-02 |
-1.0643 |
3.13E-03 |
2.20E-11 |
8.71E-02 |
-1.0598 |
3.00E-03 |
2.29E-11 |
9.28E-02 |
-1.0322 |
3.00E-03 |
2.42E-11 |
9.80E-02 |
-1.0088 |
2.94E-03 |
2.44E-11 |
9.97E-02 |
-1.0013 |
2.94E-03 |
2.47E-11 |
1.01E-01 |
-0.9955 |
2.88E-03 |
2.66E-11 |
1.10E-01 |
-0.9585 |
2.88E-03 |
2.54E-11 |
1.05E-01 |
-0.9786 |
2.81E-03 |
2.85E-11 |
1.19E-01 |
-0.9245 |
2.81E-03 |
2.73E-11 |
1.14E-01 |
-0.9430 |
y =mx +q |
Parameterm (slope) |
Parameterq (intercept) |
ParameterR2 (correlation) |
-615 |
1 |
0.91585 |
|
Extrapolation at 20°C |
1/Temperature [1/K] |
log p |
Vapour pressure [Pa] |
0.00341 |
-1.2896 |
5.13 x 10-2 |
Description of key information
In an OECD 104 study, the vapour pressure measurements were carried out according to the Knudsen effusion method.
The vapour pressure of the substance is:
Pa = 3.85 x 10-4 mmHg at 20 degrees Celsius
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °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.
