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EC number: 204-617-8 | CAS number: 123-31-9
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer-reviewed
- Principles of method if other than guideline:
- No specification of method.
- GLP compliance:
- not specified
- Type of method:
- other: data from handbook
- Temp.:
- 150 °C
- Vapour pressure:
- 5.33 hPa
- Remarks on result:
- other: Converted from 4 mm Hg
- Temp.:
- 192 °C
- Vapour pressure:
- 53.33 hPa
- Remarks on result:
- other: Converted from 40 mm Hg
- Temp.:
- 238 °C
- Vapour pressure:
- 266.64 hPa
- Remarks on result:
- other: Converted from 200 mm Hg
- Conclusions:
- According to the data from this handbook, the vapor pressure of hydroquinone is 5.33 hPa at 150 °C, 53.33 hPa at 192 °C, 266.64 hPa at 238 °C.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer-reviewed
- Principles of method if other than guideline:
- No specification of method.
- GLP compliance:
- not specified
- Type of method:
- other: data from handbook
- Temp.:
- 132.4 °C
- Vapour pressure:
- 1.33 hPa
- Remarks on result:
- other: Converted from 1 mm Hg
- Conclusions:
- According to the data from this handbook, the vapor pressure for hydroquinone is 1.33 hPa at 132.4 °C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer-reviewed
- Principles of method if other than guideline:
- calculated from experimentally derived coefficients.
- GLP compliance:
- not specified
- Type of method:
- other: extrapolation
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Remarks on result:
- other: Converted from 1.9X10-5 mm Hg
- Conclusions:
- According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.0000253 hPa at 25 °C.
- Executive summary:
According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.0000253 hPa at 25 °C.
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- peer-reviewed
- Principles of method if other than guideline:
- extrapolated value
- GLP compliance:
- not specified
- Type of method:
- other: data from peer-reviewed database
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Remarks on result:
- other: Converted from 0.000024 mm Hg
- Conclusions:
- According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.000032 hPa at 25 °C.
- Executive summary:
According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.000032 hPa at 25 °C.
Referenceopen allclose all
According to the data from this handbook, the vapor pressure of hydroquinone is 5.33 hPa at 150 °C, 53.33 hPa at 192 °C, 266.64 hPa at 238 °C.
According to the data from this handbook, the vapor pressure for hydroquinone is 1.33 hPa at 132.4 °C.
According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.0000253 hPa at 25 °C.
According to the data from this peer-reviewed database, the vapor pressure of hydroquinone is 0.000032 hPa at 25 °C.
Description of key information
0.000032 hPa at 25 °C (extrapolated based on measured values)
Key value for chemical safety assessment
- Vapour pressure:
- 0.003 Pa
- at the temperature of:
- 298.15 K
Additional information
Reliable data from peer-reviewed sources
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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