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EC number: 905-459-9 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: generally accepted calculation method
- Principles of method if other than guideline:
- handbook value
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Temp.:
- 25 °C
- Vapour pressure:
- 0.34 hPa
- Remarks on result:
- other: p-diisopropylbenzene
- Conclusions:
- The calculation of the vapor pressure of p-diisopropylbenzene via the Antoine equation yielded a value of 0.34 hPa.
- Executive summary:
The vapor pressure of p-diisopropylbenzene was calculated via the Antoine equation log P=A-B/(t+C) (A=6.11567; B=1662.007; C=194.209; temperature t in °C and P in kPa) established on experimentally derived and validated data. The extrapolation yielded a vapor pressure P=0.034 kPa (=0.34 hPa) at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: literature not available, the data, however, were evaluated in the frame of the OECD SIDS program and therefore regarded as valid
- Principles of method if other than guideline:
- handbook value
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Key result
- Temp.:
- 34.7 °C
- Vapour pressure:
- 1.3 hPa
- Remarks on result:
- other: m- diisopropylbenzene
- Key result
- Temp.:
- 40 °C
- Vapour pressure:
- 1.3 hPa
- Remarks on result:
- other: p-diisopropylbenzene
- Conclusions:
- The vapour pressure of m- diisopropylbenzene is 1.3 hPa at 34.7 degree C and the vapour pressure of p-diisopropylbenzene is 1.3 hPa at 40.0 degree C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: generally accepted calculation method
- Principles of method if other than guideline:
- handbook value
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Temp.:
- 25 °C
- Vapour pressure:
- 0.328 hPa
- Remarks on result:
- other: p-diisopropylbenzene
- Temp.:
- 25 °C
- Vapour pressure:
- 0.524 hPa
- Remarks on result:
- other: m-diisopropylbenzene
- Conclusions:
- The vapor pressures of m- and p-diisopropylbenzene are 0.328 (p-diisopropylbenzene) and 0.524 hPa (m-diisopropyl benzene) at 25°C (calculated via Cox equation).
- Executive summary:
The vapor pressures of m- and p-diisopropylbenzene were calculated via the Cox equation established on the basis of experimentally derived and validated data. The extrapolation yielded values of 0.328 (p-diisopropylbenzene) and 0.524 hPa (m-diisopropylbenzene) at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed handbook data
- Principles of method if other than guideline:
- handbook data
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Temp.:
- 8 °C
- Vapour pressure:
- 0.1 hPa
- Remarks on result:
- other: m-diisopropylbenzene: vapour pressure extrapolated from experimental data
- Temp.:
- 36 °C
- Vapour pressure:
- 1 hPa
- Remarks on result:
- other: m-diisopropylbenzene: vapour pressure extrapolated from experimental data
- Temp.:
- 18 °C
- Vapour pressure:
- 0.1 hPa
- Remarks on result:
- other: p-diisopropylbenzene: vapour pressure extrapolated from experimental data
- Temp.:
- 49 °C
- Vapour pressure:
- 1 hPa
- Remarks on result:
- other: p-diisopropylbenzene: vapour pressure extrapolated from experimental data
- Conclusions:
- The vapour pressures (extrapolated from experimental data) of the diisopropyl benzene isomers are 0.1 hPa at 8°C and 1 hPa at 36°C (m-diisopropylbenzene) and 0.1 hPa at 18°C and 1 hPa at 49°C (p-diisopropylbenzene).
- Executive summary:
In the peer-reviewed handbook, the following vapour pressure (extrapolated from experimental data) are reported
m-diisopropylbenzene: 0.1 hPa at 8°C, 1 hPa at 36°C
p-diisopropylbenzene: 0.1 hPa at 18°C, 1 hPa at 49°C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed data bank
- Principles of method if other than guideline:
- handbook data
- GLP compliance:
- not specified
- Type of method:
- other: calculation
- Temp.:
- 25 °C
- Vapour pressure:
- 0.246 mm Hg
- Remarks on result:
- other: p-diisopropyl benzene
- Temp.:
- 25 °C
- Vapour pressure:
- 0.393 mm Hg
- Remarks on result:
- other: m-diisopropyl benzene
- Conclusions:
- The vapour pressure of diisopropylbenzene is in the range between 0.246 (0.328 hPa; p-diisopropylbenzene) and 0.393 mm Hg (0.524 hPa; m-diisopropylbenzene).
- Executive summary:
In the peer-reviewed data bank, the vapour pressure of diisopropylbenzene is reported to be in the range between 0.246 (0.328 hPa; p-diisopropylbenzene) and 0.393 mm Hg (0.524 hPa; m-diisopropylbenzene).
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed handbook data
- Principles of method if other than guideline:
- handbook data
- GLP compliance:
- not specified
- Type of method:
- other: No data
- Temp.:
- 34.7 °C
- Vapour pressure:
- 1 mm Hg
- Remarks on result:
- other: m-diisopropylbenzene
- Conclusions:
- The vapor pressure of m-diisopropylbenzene is reported to be 1 mm Hg (1.33 hPa) at 34.7°C.
- Executive summary:
In the peer-reviewed handbook, the vapor pressure of m-diisopropylbenzene is reported to be 1 mm Hg (1.33 hPa) at 34.7°C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: literature not available, the data, however, were evaluated in the frame of the OECD SIDS program and therefore regarded as valid
- Principles of method if other than guideline:
- handbook value
- GLP compliance:
- not specified
- Temp.:
- 25 °C
- Vapour pressure:
- 0.328 hPa
- Remarks on result:
- other: p-diisopropylbenzene
- Temp.:
- 25 °C
- Vapour pressure:
- 0.524 hPa
- Remarks on result:
- other: m-diisopropylbenzene
- Conclusions:
- The vapor pressures of m- and p-diisopropylbenzene are 0.524 hPa and 0.328 hPa at 25°C, respectively.
Referenceopen allclose all
The data of the Hazardous Substance Data Bank (U.S. National library of Medicine) was 1 mmHg (m-Diisopropylbenzene at
34.7 degree C, p-Diisopropylbenzene at 40.0 degree C), it was converted into hPa unit.
.
Description of key information
The vapor pressures of m- and p-diisopropylbenzene were calculated via the Cox equation established on the basis of experimentally derived and validated data. The extrapolation yielded values of 0.328 (p-diisopropylbenzene) and 0.524 hPa (m-diisopropylbenzene) at 25°C.The vapor pressure of p-diisopropylbenzene was calculated via the Antoine equation log P=A-B/(t+C) (A=6.11567; B=1662.007; C=194.209; temperature t in °C and P in kPa) established on experimentally derived and validated data. The extrapolation yielded a vapor pressure P=0.034 kPa (=0.34 hPa) at 25°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.5 hPa
- at the temperature of:
- 25 °C
Additional information
Reliable data obtained via generally accepted calculation methods
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