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EC number: 428-040-8 | CAS number: 138261-41-3
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:
- 5 Jul - 14 Sep 1993
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes
- Type of method:
- gas saturation method
- Temp.:
- 20 °C
- Vapour pressure:
- 0 hPa
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
Reference
Vapour pressures calculated from the study data:
Test parameter |
Substance mass (µg) |
Gas volume at p0, T0 (L) |
Pressure p1 (hPa) |
Temperature T1 (K) |
Gas volume at p1, T1 (L) |
Vapour pressure (hPa) |
70 °C, 2 L/min |
0.664 |
14473.4 |
1033 |
343.15 |
17830.0 |
4.15E-09 |
70 °C, 1 L/min |
0.631 |
14104.2 |
1038 |
343.15 |
17286.9 |
4.07E-09 |
60 °C, 4 L/min |
0.374 |
24135.0 |
1081 |
333.15 |
27584.8 |
1.47E-09 |
60 °C, 2 L/min |
0.296 |
21592.8 |
1039 |
333.15 |
25676.8 |
1.25E-09 |
50 °C, 4 L/min |
0.176 |
25283.6 15920.0 |
1049 1084 1063(mean) |
323.15 |
28885.2 17600.5 46485.7 (sum) |
3.97E-10 |
50 °C, 2 L/min |
0.164 |
54917.7 |
1069 |
323.15 |
61566.9 |
2.80E-10 |
log p [hPa] = a + b*(1/T[K])
a = 9.26641
b = -6052.06
Corr. coefficient R = -0.992945, R² = 98.59%
Description of key information
4.0E-12 hPa at 20 °C
9.0E-12 hPa at 25 °C
Key value for chemical safety assessment
- Vapour pressure:
- 0 hPa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the substance was determined according to OECD Guideline 104 and EU Method A.4 (gas saturation method).
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.
