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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure of tributyl(ethyl)phosphonium diethylphosphate is 1.6E-07 Pa at 20°C.

Key value for chemical safety assessment

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

Additional information

In a GLP-compliant study performed according to EC Method A.4 and OECD guideline 104, the vapour pressure of tributyl(ethyl)phosphonium diethylphosphate was determined using the isothermal TGA effusion method. The vapour pressure of the test substance at 20°C and 25°C was determined at 1.6E-07 and 3.6E-07 Pa, respectively (Charles River, 2018).