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Vapour pressure

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Description of key information

123.1 Pa at 25ºC

Key value for chemical safety assessment

Vapour pressure:
123.1 Pa
at the temperature of:
25 °C

Additional information

The initial vapour pressure of Bergamot oil was estimated by calculation. Vapour pressures for the known constituents were estimated using the QSAR MPBPWIN v 1.43. The sum of the vapour pressures multiplied by the fraction of the substance in the NCS was taken as an initial estimate for the vapour pressure of the mixture. The number obtained was then corrected for the unknown constituents (assuming the average vapour pressure for the unknown constituents is similar to the average vapour pressure of the known constituents).

The initial vapour pressure of Bergamot oil was found to be 123.1 Pa at 25 degrees Celsius. The vapour pressure of the constituents ranges from 2.64E-07 to 981 Pa.