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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 22 March 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: guideline study under GLP, determinations were done at a temperature where decomposition was observed in the melting/boiling point test
- 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:
- other: isothermal thermogravimetric effusion
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 Pa
- Remarks on result:
- other: smaller than the vapour pressure of the reference compound benzo(ghi)perylene.
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
- Remarks on result:
- other: smaller than the vapour pressure of the reference compound benzo(ghi)perylene.
- Conclusions:
- The vapour pressure of the substance is <1.3E-08 Pa at 20°C
- Executive summary:
The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method. As the results obtained were outside the validation interval of the method, it was concluded that the vapour pressure is smaller than the vapour pressure of the reference compound benzo(ghi)perylene. Thus the vapour pressure of the substance is <1.3E-08 Pa at 20°C.
Reference
Results of the isothermal TGA analysis
Temperature |
Weight loss |
νT |
logνT |
logPT |
PT |
210 |
3.439 |
4.11´10-4 |
-3.39 |
0.69 |
4.9 |
|
3.439 |
4.11´10-4 |
-3.39 |
0.69 |
4.9 |
220 |
6.799 |
8.12´10-4 |
-3.09 |
1.03 |
11 |
|
7.336 |
8.76´10-4 |
-3.06 |
1.07 |
12 |
230 |
14.66 |
1.75´10-3 |
-2.76 |
1.42 |
27 |
|
15.75 |
1.88´10-3 |
-2.73 |
1.46 |
29 |
240 |
31.42 |
3.75´10-3 |
-2.43 |
1.81 |
65 |
|
33.55 |
4.00´10-3 |
-2.40 |
1.85 |
70 |
Calculated vapour pressure of the test item
Temperature |
logPT |
PT |
PT |
20 |
-12.02 |
9.5´10-13 |
7.1´10-15 |
25 |
-11.48 |
3.3´10-12 |
2.5´10-14 |
Description of key information
The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method. As the results obtained were outside the validation interval of the method, it was concluded that the vapour pressure is smaller than the vapour pressure of the reference compound benzo(ghi)perylene. Thus the vapour pressure of the substance is <1.3E-08 Pa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
For risk assessment purposes the value is set at the minimum validated value in the EUSES program (1E-06 Pa).
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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