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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Description of key information

The measurement of vapour pressure at different temperatures and the modelization derived from them (Antoine equation) allows us to provide an accurate value at 25 °C: 20.9 mm Hg or 2.79 kPa, in good agreement with values given in handbooks.

Key value for chemical safety assessment

Vapour pressure:
2.79 kPa
at the temperature of:
25 °C

Additional information

The Antoine equation of Nitroethane, determined in the range of 55 to 114 °C (its boiling temperature) has been found to be:

log p = 7.175154 - 1435.402/(t +220.184) with p in mm Hg and t in °C

The extrapolation of this equation at 25°C provides a value of 20.93 mm Hg, which is in good agreement with the value given in a handbook (20.8 mm Hg).