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EC number: 231-225-4 | CAS number: 7452-79-1
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:
- 05 October to 31 October 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Principles of method if other than guideline:
- No
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- static method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- ca. 11.73 mBar
- Remarks on result:
- other: mean of runs 1 & 2
- Conclusions:
- Vapour pressure of ethyl 2 methyl butyrate is 11.73 mbar at 20°C
Reference
Test Results for Ethyl 2-methylbutyrate:
- Date: 26/10/2011 - 31/10/2011
- Operator: C. Ayling / G. Jordan
- Preparation: Sample tested as received.
- SOP Reference: CTL SOP No. 404B
- Apparatus: Static Method Apparatus; Temperature, Balance, Pressure Monitors
Result: 11.73 mbar at 20°C (mean of runs 1 & 2)
Full test results:
Temp/°C Temp/K P/mbar **P / Pa
Run 1
*20 293.15 11.59 1159
20.7 293.85 11.6 1160
25.3 298.45 15.5 1550
33.1 306.25 25.6 2560
45.5 318.65 48.0 4800
61.2 334.35 92.5 9250
Run 2
*20 293.15 11.86 1186
20.6 293.75 12.0 1200
29.1 302.25 19.3 1930
38.8 311.95 33.2 3320
48.1 321.25 50.1 5010
75.4 348.55 158.6 15860
* Determined by extrapolation
** Calculated
Description of key information
Vapour pressure has been determined to be 1173 Pa at 20°C
Key value for chemical safety assessment
- Vapour pressure:
- 1 173 Pa
- at the temperature of:
- 20 °C
Additional information
Result: 11.73 mbar at 20°C (mean of runs 1 & 2)
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