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Vapour pressure

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Description of key information

For the test item PPDA, the following vapour pressures at 20 °C and at 25 °C were calculated:
Vapour pressure at 20 °C: 1.18 * 10-03 Pa
Vapour pressure at 25 °C: 1.65 * 10-03 Pa

Key value for chemical safety assessment

Vapour pressure:
0.001 Pa
at the temperature of:
20 °C

Additional information

The vapour pressure of the test item PPDA was determined at nine different temperatures (30, 45, 60, 75, 90, 105, 120, 135 and 150°C) following EU A.4 using the effusion method (weight loss). Experiments 1 - 3 (nominal temperatures 30, 45 and 60°C) showed no relevant weight loss. Beginning at 135°C, formation of a brown condensate was observed and the weight loss showed poorer reproducibility, which was considered to be caused by oxidation processes.

For the test item PPDA, the following vapour pressures at 20 °C and at 25 °C were calculated: Vapour pressure at 20 °C: 1.18 * 10-03 Pa Vapour pressure at 25 °C: 1.65 * 10-03 Pa

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