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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Vapour pressure

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Description of key information

Key value for chemical safety assessment

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

Additional information

The vapour pressure for 9,10-dihydro-9-oxa-10-phospaphenanthrene-10-oxide (DOPO) was calculated using three estimation methods in MPBPWIN version 1.43.

The resulting vapour pressures for DOPO at 25°C were 0.0017 Pa using the Antoine method, 0.00384 Pa using the modified Grain method and 0.00731 Pa using the Mackay method.

MPBPWIN version 1.43 selected the vapour pressure of 0.00384 Pa at 25°C as it was calculated according to the modified Grain method which is considered the most accurate estimation method for vapour pressure.