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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:
12/06/2017 - 13/06/2017
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
OECD Guideline 104 (Vapour Pressure Curve)
according to guideline
EU Method A.4 (Vapour Pressure)
GLP compliance:
Type of method:
effusion method: vapour pressure balance
20 °C
Vapour pressure:
< 0 hPa
25 °C
Vapour pressure:
< 0 hPa
50 °C
Vapour pressure:
< 0.001 hPa

The vapour pressure was measured in the temperature range of 50 °C to 100 °C.

Since the mesured vapour pressures showed an unusual behaviour, the values for 20, 25 and 50 °C

were estimated using the Antoine equation. This leads to a conservative estimation of the vapour pressure of the test item for the listed temperatures. In order to further ensure a conservative approach the vapour pressures were rounded up to the next order of magnitude in order to obtain final upper limit values for the vapour pressure.

Based on the measured vapour pressure at 50 °C (vapour pressure balance), the following upperlimit vapour pressure values for the test item were calculated:T / °C p / hPa 20 < 1 × 10-4 25 < 1 × 10-4 50 < 1 × 10-3

Description of key information

Key value for chemical safety assessment

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

Additional information