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Vapour pressure

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Description of key information

Vapour pressure: 0.373 Pa at 25 degree C

Key value for chemical safety assessment

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

Additional information

Vapour pressure has been calculated using the computer program MPBVP (v1.43). It is predicted that the substance has a vapour pressure of 0.305 Pa at 25 Deg C.

The vapour pressure of tetrahydromethylphthalic anhydride (MTHPA) has also been calculated by 3 different QSAR models at 25 degree C:

- 0.00243 -0.00294 mmHg (MPBPVP v1.43 (Mean VP of Antoine & Grain methods)

- 0.00238 -0.00286 mmHg (AEROWIN v1.00)

- 0.0033 mmHg (Antonie equation)

The mean value of 0.0028 mmHg = 0.373 Pa was considered reliable in a Weight of Evidence approach.