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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
Study period:
from 18 to 27 January 2012
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
yes
Remarks:
Fresh samples need to be used for the assessment of vapour pressure at the various testing temperatures: no impact on the integrity of the study data
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
yes
Remarks:
Fresh samples need to be used for the assessment of vapour pressure at the various testing temperatures: no impact on the integrity of the study dat
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: by loss of weight or by trapping vaporisate
Remarks:
Knudsen cell
Temp.:
20 °C
Vapour pressure:
0.293 Pa
Temp.:
25 °C
Vapour pressure:
0.344 Pa
Transition / decomposition:
no
Transition temp.:
> 20 - < 350 °C
Conclusions:
The experimentally-determined mean vapour pressures of CAE at temperatures of 20°C and 25°C were obtained and are shown below:
0.2929 at 20°C
0.3439 at 25°C
Executive summary:

Vapour pressures of CAE at 20°C and 25°C were determined to be 0.2929 and 0.3439 respectively according to EC Method A4 and OECD guideline 104 (Effusion method: knudsen cell).

Description of key information

2 vapour pressure values are available. The highest value is used in the risk assessment as a worst case.

Key value for chemical safety assessment

Vapour pressure:
0.293 Pa
at the temperature of:
20 °C

Additional information