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Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
equivalent or similar to guideline
other: Effuision method
Type of method:
effusion method: Knudsen cell
25 °C
Vapour pressure:
0 hPa

Description of key information

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the substance (TMPeoTA) was initially determined in accordance with the test method OECD Guideline 104 "OECD Guideline (similar to the test method AA. "Vapour Pressure according to the Dynamic Method"). The substance (TMPeoTA) has a vapour pressure of s 3.2x10-3 Pa (3.2x10-5 mbar) at 20°C according to the definition in the OECD Guideline 104 (Grain-Watson estimation).

in 2021 determination of the vapour pressure was re-done using effusion method. The substance (TMPeoTA) showed vapour pressure of s 4,41x10-7 hPa at 25°C according in a Knudsen cell method.