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EC number: 609-333-1 | CAS number: 37143-54-7
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- no
- Type of method:
- dynamic method
Test material
- Reference substance name:
- 609-333-1
- EC Number:
- 609-333-1
- Cas Number:
- 37143-54-7
- Molecular formula:
- C4 H11 N O
- IUPAC Name:
- 609-333-1
- Test material form:
- liquid
1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 38.4 hPa
- Remarks on result:
- other: extrapolated
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 50.54 hPa
- Remarks on result:
- other: intrapolated
Vapour pressure at 50°C (if relevant for classification of gas under pressure)
- Key result
- Vapour pressure:
- 169.76 hPa
- Remarks on result:
- other: intrapolated
Any other information on results incl. tables
Results:
Temperature [°C] |
Vapour pressure (measurement) [hPa] |
Vapour pressure (calculationb)) [hPa] |
Aberration [%] |
24.82 |
50.06 |
50.046 |
0.03 |
32.65 |
75.09 |
75.219 |
-0.17 |
38.41 |
100.0 |
99.83 |
0.17 |
53.80 |
200.0 |
199.93 |
0.04 |
64.74 |
299.9 |
300.15 |
-0.08 |
77.35 |
499.9 |
499.85 |
0.01 |
89.21 |
750.1 |
750.18 |
-0.01 |
98.34 |
1003.7 |
1003.51 |
0.02 |
98.65 |
- |
1013.25 |
- |
The regression of the results leads with a mean deviation of 0.166 % to the following equation:
ln(p/hPa) = 9.3895 - 2850.22 / (205.33 + t/°C)
The vapour pressure at 20 °C, 25 °C and 50°C was calculated from the regression equation.
The normal boiling temperature was obtained by extrapolation from the vapour pressure curve.
Applicant's summary and conclusion
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