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EC number: 270-695-5 | CAS number: 68476-55-1
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP status not known, guideline study, available as an unpublished report, reliable with restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: EN 13016-1
- GLP compliance:
- not specified
- Type of method:
- other: DVPE
- Temp.:
- 37.8 °C
- Vapour pressure:
- 145 kPa
- Conclusions:
- The vapour pressure of substance 102110-14-5 is 145 kPa at 37.8 °C.
- Executive summary:
This is a guideline study and is considered reliable and suitable for use for this endpoint. The vapour pressure of substance 102110-14-5 is 145 kPa at 37.8 °C.
- 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 status not known, guideline study, experimental study, no restrictions, fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- static method
- Key result
- Temp.:
- 20.7 °C
- Vapour pressure:
- 5.62 kPa
- Key result
- Temp.:
- 30.2 °C
- Vapour pressure:
- 8.59 kPa
- Key result
- Temp.:
- 40.2 °C
- Vapour pressure:
- 12.93 kPa
- Key result
- Temp.:
- 50.1 °C
- Vapour pressure:
- 18.84 kPa
- Key result
- Temp.:
- 60.2 °C
- Vapour pressure:
- 27.36 kPa
- Key result
- Temp.:
- 70.2 °C
- Vapour pressure:
- 38.52 kPa
- Key result
- Temp.:
- 80.2 °C
- Vapour pressure:
- 53.17 kPa
- Key result
- Temp.:
- 90.2 °C
- Vapour pressure:
- 72.29 kPa
- Key result
- Temp.:
- 100.1 °C
- Vapour pressure:
- 93.64 kPa
- Conclusions:
- The vapour pressure of the substance is 5.62 kPa at 20.7 °C.
- Executive summary:
Although the GLP status is not known, the study follows a standard guideline and is considered to be reliable. The vapour pressure of the substance is 5.62 kPa at 20.7 °C.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 08/12/2008 - 08/04/2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, experimental study, no restrictions, fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- static method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 15.51 kPa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 50.37 kPa
- Conclusions:
- The vapour pressure at 20 °C is 15.51 kPa, the vapour pressure at 50 °C is 50.37 kPa.
- Executive summary:
The study is GLP compliant and carried out to a standard guideline, therefore the data is considered reliable. The vapour pressure at 20 °C is 15.51 kPa, the vapour pressure at 50 °C is 50.37 kPa.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06/06/2007 - 16/10/2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, available as unpublished report, no restrictions fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- static method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 42.722 kPa
- Remarks on result:
- other: Calculated from the regression equation
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 51.411 kPa
- Remarks on result:
- other: Calculated from the regression equation
- Conclusions:
- The vapour pressure of 68476-55-1 at 20°C is 42.722 kPa and at 25°C is 51.411 kPa. These values were calculated by interpolation using a regression equation.
- Executive summary:
This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The interpolated vapour pressure of 68476-55-1 at 20°C is 42.722 kPa and at 25°C is 51.411 kPa.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23/10/2007 - 04/03/2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant,guideline study, available as unpublished report, no restrictions, fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- static method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 15.09 kPa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 47.66 kPa
- Conclusions:
- The vapour pressure of 92128-65-9 at 20°C is 150.9hPa and at 50°C is 476.9hPa. These values were calculated by interpolation using a regression equation.
- Executive summary:
This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The interpolated vapour pressure of 92128-65-9 at 20°C is 150.9hPa and at 50°C is 476.9hPa.
Referenceopen allclose all
Vapour pressure was measured over the temperature range 4.54-49.43°C and used to derive a regression equation: ln(p/hPa) = 17.723 - 3616.72 / (290.03 + t) where t is temperature in °C. This equation was used to calculate the vapour pressure at 20 and 25°C.
| temperature°C | vapour pressure (hPa) |
| 4.54 | 231.8 |
| 9.53 | 283.9 |
| 16.5 | 373.8 |
| 24.46 | 504.1 |
| 32.46 | 670.8 |
| 39.46 | 851.2 |
| 44.45 | 1002.4 |
| 49.43 | 1174 |
Vapour pressure was measured over the temperature range 19.5-74.42°C and used to derive a regression equation: ln(p/hPa) = 17.018 - 3395.29 / (262.9 + t) where t is temperature in °C.
Description of key information
The vapour pressure of the streams in this category ranges from 5.62 - 145.0 kPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 47.07 kPa
- at the temperature of:
- 20 °C
Additional information
Data are available for all five streams in this category (64741-84-0: 5.62 kPa at 20°C, 64742-49-0: 15.51 kPa at 20°C, 92128-65-9: 15.09 kPa at 20°C, 68476-55-1: 42.722 kPa at 20°C and 58.484 kPa at 25°C, 102110-14-5: 145.0 kPa at 37.8°C) from Chilworth laboratories (2009), BASF (2009), GKA competence centre analytics (2009, 2008, 2008) and Shell (2009).
The mean of the vapour pressure values for the category is 47.07 kPa at 20°C and this has been used to complete the 'key value for chemical safety assessment'.
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