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Physical & Chemical properties

Vapour pressure

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Description of key information

Vapour Pressure: 0.12 hPa at 20 °C.

Key value for chemical safety assessment

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

Additional information

n-Vinylpyrrolidinone has a measured vapour pressure of 0.12 hPa at 20 °C and 1.23 hPa at 50 °C (BASF, 1982). These values are supported by sevaral other measured and published values that include 1.97 hPa at 56.9 °C and 133.2 hPa at 148 °C (BASF, 1976), 0.144 at 20 °C and 1.3 at 50 °C (BASF 1994), 13 hPa at 91 °C (GESTIS, 2010), and 0.152 hPa @ 25 °C (Japan CHIRP database, 2010 and SRC, 2010).