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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideleine study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report Date:
2007

Materials and methods

Test guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Principles of method if other than guideline:
The vapour pressure was determined by effusion method, weight loss, according to OECD Test Guideline 104 and Annex Commission Directive 92/69/EEC, AA.
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: by loss of weight or by trapping vaporisate

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): 5-(4-chlorobenzylidene)-2,2,-dimethylcyclopentanone
- Analytical purity: 96.8%
- Lot/batch No.: COD-000462

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0 hPa
Temp.:
50 °C
Vapour pressure:
0 hPa

Any other information on results incl. tables

The regression of the results leads with a mean deviation of 5 % to the following equation:

In (p/hPa) =12.4749 - 2866.92/ (89.15+ t/°C)

The vapour pressures at 20°C and 50°C were calculated from the regression equation.

Temperature Vapour Pressure

20°C hPa 1.0*10 -6

50°C hPa 2.9.*10-4

In the temperature range used tor vapour pressure measurements the test item was solid.

Temperature (°C)  Cell1 (hPa) Cell2 (hPa)
38.8 4.91.  4.91.*10-5  4.87*10-5
56.9  7.68*10-4  7.57*10-4
74.6  6.68*10-3  6.68*10-3
102.4  7.84*10-2  8.60*10.2

Applicant's summary and conclusion