RM23

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12.04. - 25.05.2000

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2000

Report date:

2000

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Version / remarks:

1992

Deviations:

no

GLP compliance:

yes

Type of method:

effusion method: vapour pressure balance

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

425-120-4

EC Name:

-

Cas Number:

83847-14-7

Molecular formula:

C23H23NO5

IUPAC Name:

4-cyanophenyl 4-{[6-(prop-2-enoyloxy)hexyl]oxy}benzoate

Test material form:

solid

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Temp.:

25 °C

Vapour pressure:

0 hPa

Vapour pressure 2

Key result

Temp.:

50 °C

Vapour pressure:

0 hPa

Any other information on results incl. tables

The vapour pressure was measured in the temperature range of 20 °C to 150 °C. In the temperature range 20 °C up to 106 °C no increase in weight and therefore no vapour pressure of the test substance was registered . Up to about 90 °C the test substance had melted, so the vapour pressure curve was restricted an the values between 1.1E-5 and 5.6E-4 hPa, i .e. between 112 °C and 150 °C. The values for 20, 25 and 50°C are calculated using the Antoine constants.

Applicant's summary and conclusion

Conclusions:

The extrapolated vapour pressure value for 25°C is 4.8E-11 hPa.

Executive summary:

Based on the measured data by using the effusion method (vapour pressure balance), the extrapolated vapour pressure value for 25°C is 4.8E-11 hPa.