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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:
2015 - 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes (incl. QA statement)
Type of method:
gas saturation method
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
0.073 hPa
Remarks on result:
other: extrapolated value
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
0.11 hPa
Remarks on result:
other: measured value
Key result
Test no.:
#3
Temp.:
50 °C
Vapour pressure:
0.669 hPa
Remarks on result:
other: measured value

In the temperature range used for the measurement, the test item showed a change of state from solid/liquid to liquid at appr. 50°C.


The regression of the vapor pressure data leads with a mean deviation of 2.87% to the fol lowing equation:
Ln ( p / hPa) = 17.9047 - 5099.02 / ( 228.54 + t / °C)

Description of key information

Extrapolated 0.0735 hPa at 20°C


Measured 0.11 hPa at 25°C


Meaured 0.669 hPa at 50°C

Key value for chemical safety assessment

Vapour pressure:
0.073 hPa
at the temperature of:
20 °C

Additional information

The determination was conducted by gas saturation method according to OECD Guideline 104.