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EC number: 253-168-4 | CAS number: 36727-29-4
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- dynamic method
- Remarks:
- under nitrogen
Test material
- Reference substance name:
- 3,5,5-trimethylhexanoyl chloride
- EC Number:
- 253-168-4
- EC Name:
- 3,5,5-trimethylhexanoyl chloride
- Cas Number:
- 36727-29-4
- Molecular formula:
- C9H17ClO
- IUPAC Name:
- 3,5,5-trimethylhexanoyl chloride
- Test material form:
- liquid
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.68 hPa
- Remarks on result:
- other: calculated from the regression equation
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 4.98 hPa
- Remarks on result:
- other: calculated from the regression equation
Vapour pressure at 50°C (if relevant for classification of gas under pressure)
- Key result
- Vapour pressure:
- 4.98 hPa
- Remarks on result:
- other: calculated from the regression equation
Any other information on results incl. tables
Results
Temperature [°C] | Vapour pressure (measurement) [hPa] | Vapour pressure (calculation) [hPa] |
19.92 | 0.68 | 0.679 |
25.17 | 1.00 | 0.997 |
35.18 | 1.98 | 1.983 |
41.68 | 3.00 | 3.009 |
50.11 | 5.00 | 5.008 |
56.00 | 7.00 | 7.012 |
62.45 | 9.95 | 9.969 |
76.17 | 19.98 | 19.979 |
84.84 | 29.98 | 29.977 |
96.52 | 49.99 | 49.924 |
104.73 | 70.01 | 69.842 |
113.92 | 99.97 | 99.657 |
133.53 | 199.9 | 199.61 |
146.15 | 300.1 | 299.67 |
163.53 | 499.7 | 501.24 |
175.83 | 699.4 | 701.34 |
190.17 | 1011.6 | 1010.71 |
The regression of the results leads with a mean deviation of 0.18 % to the following equation:
ln(p/hPa) = 16.6992 - 3894.45 / (208.00 + V°C)
The vapour pressure at 20°c and 50°C was calculated from the regression equation.
| Temperature in °C | Vapour pressure in hPa |
| 20 | 0.68 |
| 50 | 4.98 |
The test item is liquid in the temperature range used for the vapour pressure measurements.
Applicant's summary and conclusion
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