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EC number: 210-539-5 | CAS number: 617-94-7
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1949
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The purety and method are given in this publication.
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: WilIinghanl, C. B., Taylor, W. J., Pignocco, J. M., and Rossini, F. D., J. R.search Natl. Bur. Standards. 35, 219 (1945)
- Deviations:
- yes
- Remarks:
- see Principles of method if other than guideline
- Principles of method if other than guideline:
- The points for controlling the pressure were placed on the atmospheric side instead of on the pressure side.
- Temp.:
- 20 °C
- Vapour pressure:
- 26 Pa
- Conclusions:
- The vapour pressure of pure 2-phenylpropan-2-ol is 26 Pa at 20°C.
- Executive summary:
The purety and method are given in this publication. With the data in this paper a calculation is made by Nuysink to determine by extrapolation the vapour pressure.
The vapour pressure of pure 2-phenylpropan-2-ol is 26 Pa at 20°C.
The vapour pressure of the commercial product will be different, because the impurities will effect the outcome.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- estimated by calculation
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Remarks:
- in line with literature/calculated vapor pressure values
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Software V11.02
- GLP compliance:
- no
- Temp.:
- 25 °C
- Vapour pressure:
- 0.183 Torr
- Temp.:
- 25 °C
- Vapour pressure:
- 24.4 Pa
- Conclusions:
- The calculated vapour pressure of 2-phenylpropan-2-ol is 24.4 Pa at 25°C.
- Executive summary:
The calculated vapour pressure of 2-phenylpropan-2-ol is 0.183 Torr that is 24.4 Pa at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- estimated by calculation
- Adequacy of study:
- weight of evidence
- Study period:
- Januari 2013
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Well conducted calculation with literature data.
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- calculated using literature data
- GLP compliance:
- no
- Type of method:
- other: calculation
- Temp.:
- 20 °C
- Vapour pressure:
- 0.154 mm Hg
- Temp.:
- 20 °C
- Vapour pressure:
- 21 Pa
- Conclusions:
- The vapour pressure of pure 2-phenylpropan-2-ol is 21 Pa at 20°C.
- Executive summary:
Well conducted calculation with literature data by one of the experts of AkzoNobel. The outcome is pausible.
The vapour pressure of pure 2-phenylpropan-2-ol is 26 Pa at 20°C. The vapour pressure of the commercial product will be different, becase the impurities will effect the outcome.
Referenceopen allclose all
See graph in the attachment.
| Calculated results: | ||
| At 20°C | 0,026159 | kPa |
0,026159 kPa = 26 Pa.
0.183 Torr = 24.4 Pa.
See the figure in the attachment.
The vapour pressure is 0.154 mmHg = 0.02053 KPa = 21 Pa.
Description of key information
The vapour pressure of pure 2-phenylpropan-2-ol is 23 Pa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 23 Pa
- at the temperature of:
- 20 °C
Additional information
Weight of evidence on three endpoints:
| Endpoint study record | Vapour pressure |
| Pa | |
| 617-94-7, Vapour pressure, Dreisbach, 1949, WoE | 26,16 |
| 617-94-7, Vapour pressure, Nuysink, 2013, WoE | 20,53 |
| 617-94-7, Vapour pressure, ACD, 2012, WoE | 24.40 |
Average |
23,3 |
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