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EC number: - | 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:
- 24 December 2015 to 08 March 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study according to the guideline under GLP
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- GLP compliance:
- yes
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: weight loss of the substance was less than that of reference compound chrysene
- Temp.:
- 25 °C
- Vapour pressure:
- 0
- Remarks on result:
- other: weight loss of the substance was less than that of reference compound chrysene
- Conclusions:
- The vapour pressure of the substance is < 8.4E-07 Pa at 20 °C
- Executive summary:
The vapour pressure was determined for the substance with the isothermal thermogravimetric effusion method. The vapour pressure is lower than that of the reference compound chrysene: < 8.4E-07 Pa at 20 °C and 1.3E-06 Pa at 25 °C.
Reference
Results of the isothermal TGA analysis
Temperature |
Weight loss |
νT |
logνT |
logPT |
PT |
|
|
|
|
|
|
170 |
4.888 |
5.83´10-4 |
-3.23 |
0.87 |
7.3 |
|
7.139 |
8.52´10-4 |
-3.07 |
1.06 |
11 |
|
|
|
|
|
|
180 |
6.579 |
7.85´10-4 |
-3.10 |
1.02 |
10 |
|
9.316 |
1.11´10-3 |
-2.95 |
1.19 |
16 |
|
|
|
|
|
|
190 |
8.792 |
1.05´10-3 |
-2.98 |
1.16 |
15 |
|
12.57 |
1.50´10-3 |
-2.82 |
1.35 |
22 |
|
|
|
|
|
|
200 |
12.24 |
1.46´10-3 |
-2.84 |
1.33 |
22 |
|
17.17 |
2.05´10-3 |
-2.69 |
1.50 |
32 |
|
|
|
|
|
|
Vapour pressure of the test item
|
20°C |
25°C |
||
|
[Pa] |
[mm Hg] |
[Pa] |
[mm Hg] |
|
|
|
|
|
Test item |
< 8.4´10-7 |
< 6.3´10-9 |
< 1.3´10-6 |
< 9.6´10-9 |
|
|
|
|
|
Description of key information
The vapour pressure was determined for the substance with the isothermal thermogravimetric effusion method. The vapour pressure is lower than that of the reference compound chrysene: < 8.4E-07 Pa at 20 °C and 1.3E-06 Pa at 25 °C.
For risk assessment the vapour pressure is set at 1E-06 Pa at 20°C (minimum value in EUSES)
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
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