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Physical & Chemical properties

Vapour pressure

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Description of key information

≤ 1.6E-08 Pa at 25 °C
≤ 6.7E-08 Pa at 35 °C
7.44E-11 Pa at 25 °C (calculated)

Key value for chemical safety assessment

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

Additional information

The vapour pressure was determined by the gas saturation method at 35 °C according to EU Method A.4. The vapour pressure at 25 °C was estimated by use of the modified Watson correlation. The value is far below the applicability range of the method and the modified Watson correlation and only a limit value could be determined. Further deficiencies are inconsistence in the measurement of the collected vapour and it is not guaranteed, that the flow rate was sufficiently slow. However these values are the best available and in a weight of evidence approach in combination with a QSAR calculation (SPARC v4.5) and consideration of the high boiling point (188 -190 °C at 0.133 Pa) the reported values are acceptable.