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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
Study period:
February 2010
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
Guideline:
other: DIN-EN 13016-2
Version / remarks:
2007
GLP compliance:
no
Other quality assurance:
other: The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008
Type of method:
static method
Remarks:
MiniVap (Fa. Grabner-Instruments)
Key result
Temp.:
20 °C
Vapour pressure:
631 hPa

The following regression equation was used to derive the vapour pressure for target temperatures:

y = -1450.9 x + 7.7552; coefficient of determination R^2 = 0.9999

y being log vapour pressure [hPa], x being 1/T [K].

This yields for 20°C a vapour pressure of 631 hPa.

The regression was based on the following experimental data:

Temperature Vapour pressure [hPa]
20 °C 631
25 °C 770
30 °C 926
35 °C 1114
40 °C 1329
45 °C 1577
50 °C 1859
55 °C 2176
60 °C 2534
65 °C 2936
70 °C 3388
75 °C 3888
80 °C 4444
85°C 5056
90 °C 5724
95 °C 6460
100 °C 7264
Conclusions:
Vapour pressure (DIN-EN 13016-2): 631 hPa at 20° C.
Executive summary:

Vapour pressure (DIN-EN 13016-2): 631 hPa at 20° C.

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

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

Description of key information

Vapour pressure (DIN-EN 13016-2): 631 hPa at 20° C.

Key value for chemical safety assessment

Vapour pressure:
631 hPa
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: 631 hPa at 20°C.

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