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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2012 December
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Calculation by Antoine equation
Type of method:
other: calculation
Temp.:
ca. 0 °C
Vapour pressure:
ca. 0.18 hPa
Temp.:
ca. 10 °C
Vapour pressure:
ca. 0.38 hPa
Key result
Temp.:
ca. 20 °C
Vapour pressure:
ca. 0.78 hPa

Antoine equation y' = 18,45 + -5104,41 / (T + 253)

Derived from data of "VDI-Wärmeatlas"

Temperatur Dampfdruck

°C mbar

23,8 1

38,2 2,5

50,1 5

63,3 10

82 25

98 50

115,7 100

142,1 250

164,5 500

Conclusions:
The vapour pressure of benzonnitrile at 20°C is 0.78 hPa
Executive summary:

By extrapolation of well known vapour pressure data by Antoine equation the vapour pressure was calculatedto be 0.78 hPa at 20°C

Description of key information

The vapour pressure of benzonitrile is 0,78 hPa at 20°C

Key value for chemical safety assessment

Vapour pressure:
0.78 hPa
at the temperature of:
20 °C

Additional information