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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions (e.g. non-GLP)
Qualifier:
according to
Guideline:
other: DIN-EN 13016-2
GLP compliance:
no
Other quality assurance:
other: The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008 and DIN EN ISO 14001 : 2005
Type of method:
static method
Remarks:
MiniVap (Fa. Grabner-Instruments)
Key result
Temp.:
20 °C
Vapour pressure:
26 Pa
Remarks on result:
other: extrapolated value based on experimental results
Temp.:
20 °C
Vapour pressure:
< 1 hPa
Remarks on result:
other: extrapolated result based on experimental result

The following regression equation was used to extrapolate to lower temperatures:

y = 2650.4x + 8.4503, R^2 = 0.9995

y: log P [hPa]

x: 1/T [°K]

This yields for 20°C a vapour pressure of 26 Pa.

The regression was based on the following experimental data:

Temperature [°C ] Vapour pressure [hPa]
120 °C 52
125 °C 62
130 °C 75
135 °C 90
140 °C 107
145 °C 130
150 °C 156
Conclusions:
Vapour pressure (DIN-EN 13016-2): 26 Pa at 20°C
Executive summary:

The vapour pressure was determined following the static method according to guideline DIN-EN 13016-2 ("MiniVap" device, Co. Grabner-Instruments).

Vapour pressure: < 1 hPa at 20°C, i.e. 26 Pa at 20°C (extrapolated value).

The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008 and DIN EN ISO 14001 : 2005.

Description of key information

Vapour pressure (DIN-EN 13016-2): 26 Pa at 20°C

Key value for chemical safety assessment

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

Additional information

The vapour pressure was determined following the static method according to guideline DIN-EN 13016-2 ("MiniVap" device, Co. Grabner-Instruments).

Vapour pressure: < 1 hPa at 20°C, i.e. 26 Pa at 20°C (extrapolated value).

The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008 and DIN EN ISO 14001 : 2005.