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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
not specified
Type of method:
effusion method: Knudsen cell
Key result
Temp.:
25 °C
Vapour pressure:
0 mm Hg
Conclusions:
The vapour pressure of Phenacetin at 25ºC is 6.29e-7 mmHg.
Executive summary:

For test item vapor pressure determination, it was used Knudsen effusion method, similar to OECD 104. It involves measurement of the rate of loss of molecules of the evaporating substance leaving the opening of an effusion cell. Measurements were made using the Mettler Thermoanalyzer. The vapour pressure of Phenacetin was found to be 6.29X10-7 mm Hg at 25ºC.

Description of key information

Key study: According to effusion method Knudsen cell, similar to guidleine OECD 104, the vapour pressure of test item was found to be at 6.29X10-7 mm Hg at 25ºC

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information