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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:
2017-08-07 to 04-09-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
no
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
1 940 Pa
Temp.:
25 °C
Vapour pressure:
2 470 Pa

Results

The measured and calculated values of Vinylcyclohexane are given in the following table 1.

The static method is suitable to determine the vapour pressure (in the range of 10 to 10^5 Pa). The values obtained from decreasing the temperature coincides with the curve obtained for increasing temperature. The resulting vapour pressure curve can be utilised for calculation of the vapour pressure of the sample. The vapour pressure of Vinylcyclohexane is assigned to be 1.94 x 10^3 Pa at 20 °C and 2.47 x 10^3 Pa at 25 °C.

Table 1: Measured and calculated values of Vinylcyclohexane

Temperature T

Pressure p(i)

1/T

log (p(i)/p)

[K]

[hPa]

[1/K]

[-]

287,65

13,2

0,00348

-1,89

292,45

17,6

0,00342

-1,76

296,35

24,5

0,00337

-1,62

302,45

29,7

0,00331

-1,53

307,25

37,6

0,00325

-1,43

313,05

47,0

0,00319

-1,33

317,35

53,6

0,00315

-1,28

322,25

72,1

0,00310

-1,15

317,35

59,4

0,00315

-1,23

312,25

48,3

0,00320

-1,32

307,35

39,2

0,00325

-1,41

302,45

31,2

0,00331

-1,51

297,45

24,8

0,00336

-1,61

292,25

19,3

0,00342

-1,72

287,45

15,2

0,00348

-1,82

Conclusions:
The vapour pressure of Vinylcyclohexane determined according to OECD guideline 104 is 1.94 x 10^3 Pa at 20 °C and 2.47 x 10^3 Pa at 25 °C, respectively.
Executive summary:

The vapour pressure of Vinylcyclohexane determined according to OECD guideline 104 is 1.94 x 10^3 Pa at 20 °C and 2.47 x 10^3 Pa at 25 °C, respectively.

Description of key information

The vapour pressure of Vinylcyclohexane determined according to OECD guideline 104 is 1.94 x 10^3 Pa at 20 °C and 2.47 x 10^3 Pa at 25 °C, respectively.

Key value for chemical safety assessment

Vapour pressure:
1 940 Pa
at the temperature of:
20 °C

Additional information