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Physical & Chemical properties

Vapour pressure

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Description of key information

about 0.02 bar at 250°C
about 0.15 bar at 300°C
about 1.01 bar at 359°C
about 4.8 bar at 420°C

Key value for chemical safety assessment

Vapour pressure:
0.02 hPa
at the temperature of:
250 °C

Additional information

Data of hexagonal form (see remark CSR 1.1.).

Orthorhombic forms exhibit almost no vapopurpressure below 400°C