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Vapour pressure

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Description of key information

The vapour pressure of MBB was 5.0 x 10(-8), 1.6 x 10(-7) and 3.7 x 10(-5) hPa at 20, 25 and 50°C respectively.

Key value for chemical safety assessment

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

Additional information

The vapour pressure of 2-Methoxymethyl-p-phenylenediamine (MBB) was determined following the OECD 104 guideline.

Vapour pressure of the test material was determined by effusion method (vapour pressure balance) within the temperature range of 25°C to 82°C.

No vapour pressure of the test material was observed below approx. 60°C in effusion method. The vapour pressure ranged from 3.5 X 10-4 to 1.1 X 10-2 hPa, when measured at a temperature range of 63.7 to 82.4°C. These measurements were used to calculate vapour pressure at 20-50°C, using the Antoine equation.

The vapour pressure of the test material was (calculated using Antoine equation):

5.0 x 10-8hPa at 20°C

1.6 x10-7hPa at 25°C

3.7 x 10-5hPa at 50°C

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