Registration Dossier
Registration Dossier
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EC number: 209-790-3 | CAS number: 593-45-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- other: data from handbook
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed handbook
- Qualifier:
- according to guideline
- Guideline:
- other: no data
- Deviations:
- not specified
- GLP compliance:
- not specified
- Type of method:
- other: handbook data
- Key result
- Temp.:
- 311.88 K
- Vapour pressure:
- 0.1 Pa
- Temp.:
- 334.61 K
- Vapour pressure:
- 1 Pa
- Temp.:
- 362.08 K
- Vapour pressure:
- 10 Pa
- Temp.:
- 396.24 K
- Vapour pressure:
- 100 Pa
- Temp.:
- 440.41 K
- Vapour pressure:
- 1 000 Pa
- Temp.:
- 500.7 K
- Vapour pressure:
- 10 000 Pa
- Temp.:
- 590.02 K
- Vapour pressure:
- 101 325 Pa
- Key result
- Temp.:
- 298.15 K
- Vapour pressure:
- 0.02 Pa
- Conclusions:
- - vapour pressure = 0.02007 Pa (at 25°C)
- vapour pressure = 0.1 Pa (at 38.7°C) - Executive summary:
According to the Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals, the vapour pressure of Octadecane is 0.02007 Pa at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- other: data from handbook
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: peer-reviewed handbook
- Qualifier:
- according to guideline
- Guideline:
- other: no data
- Deviations:
- not specified
- GLP compliance:
- not specified
- Type of method:
- other: data from handbook
- Key result
- Temp.:
- 28.2 °C
- Vapour pressure:
- 0.034 Pa
- Conclusions:
- vapour pressure = 0.034 Pa (at 28.2°C)
- Executive summary:
The vapour pressure of the substance Octadecane, reported from Perry's Chemical Engineer's Handbook, is < 0.1 Pa (at ca. 30°C).
Referenceopen allclose all
The reported vapour pressures of n-octadecane at various temperatures herein are the recommended ones (Ref. Ruzicka & Majer (1994), according to the Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals.
Description of key information
1) 0.034 Pa at 28.2°C (Perry`s Chemical Engineers`Handbook, 1999)
2) 0.02007 Pa at 25°C; 0.1 Pa at 38.7°C (Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals, 2006)
Key value for chemical safety assessment
- Vapour pressure:
- 0.02 Pa
- at the temperature of:
- 25 °C
Additional information
The values obtained are from literature sources with no specific details of methodology. However, the available information is consistent and provides sufficient data to allow a reliable result to be determined.
It is safe to say that the vapour pressure of octadecane is < 0.1 Pa at 30°C.
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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