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EC number: 234-147-9 | CAS number: 10563-26-5
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- static method
- Temp.:
- 20 °C
- Vapour pressure:
- 2.2 hPa
- Temp.:
- 25 °C
- Vapour pressure:
- 2.6 hPa
- Temp.:
- 50 °C
- Vapour pressure:
- 4.7 hPa
Reference
Results:
| Temperature | Vapour pressure [p/hPa] | |
| [°C] | measurement | calculation |
| 19.9 | 2.2 | 2,24 |
| 39.9 | 3.8 | 3,72 |
| 49.9 | 4.8 | 4,7 |
| 60.0 | 5.9 | 5.9 |
| 79.9 | 8.8 | 8,94 |
| 99.8 | 12.6 | 13,07 |
| 119.8 | 19.1 | 18,56 |
The regression of the vapour pressure data leads with a mean deviation of 2.02% to the following equation:
ln (p/hPa) =11.0867 –3965.80 / (365.88 + t/°C)
In the temperature range used for vapour pressure measurements the test item was liquid.The graph enclosed (page 9) shows the vapour pressure curve.
The vapour pressures of the following table were calculated from the regression equation.
Description of key information
The vapour pressure of N,N'-bis(3-aminopropyl)ethylenediamine is 2.2 hPa at 20°C, 2.6 hPa at 25°C and 4.7 hPa at 50°C.
Key value for chemical safety assessment
- Vapour pressure:
- 2.2 hPa
- 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.
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