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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The vapour pressure was taken from a peer reviewed publication.
equivalent or similar to guideline
other: not stated
Principles of method if other than guideline:
Full method details and verification are described in the second to sixth listed reference above.
The vapour pressure was determined using the transpiration method, where the transfer of the substance occurs in a saturated N2-stream. About 0.5g of teh sampel was mixed with glass beads and placed in a thermostated U-tube of length 20cm and diameter 0.5m. A N2 stream was passed through the U-tube at constant temp and the transported amount of material was condensed in a cooled trap. This amount was determined by GC. Daltons law is assumed and vapour pressure is calculated.
GLP compliance:
Type of method:
gas saturation method
292 K
Vapour pressure:
96.26 Pa
295 K
Vapour pressure:
122.16 Pa
298 K
Vapour pressure:
148.29 Pa
Transition / decomposition:

No further information provided

The vapour pressure of octanal was determined to be 148.29 Pa at 298K (25 °C).
Executive summary:

The vapour pressure of octanal was determined to be 148.29 Pa at 298K (25 °C) using the transpiration method.

Description of key information

The vapour pressure of octanal was determined to be 148.29 Pa at 298K (25 °C).

Key value for chemical safety assessment

Vapour pressure:
148.29 Pa
at the temperature of:
298 K

Additional information