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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
Study period:
April 17, 2007 - May 31, 2007
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose:
reference to same study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
, 2006
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
, 1992
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
signed 2004-09-06
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Symrose, (cis/trans) 4-(3-methylbutyl)cyclohexanol
- Substance type: industrial product
- Physical state: liquid, colourless
- Storage condition of test material: ambient temperature, dark, dry

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.015 Pa
Temp.:
25 °C
Vapour pressure:
0.043 Pa
Temp.:
50 °C
Vapour pressure:
2.4 Pa

Any other information on results incl. tables

Dynamic method:

The vapour pressure was measured in the temperature range of 125 °C to 231 °C.

Table 1: Measured vapour pressures

Temperature / °C

Vapour pressure / hPa

125.4

14.7

137.4

30.0

153.8

60.2

162.6

90.3

168.7

119.8

182.9

199.7

194.7

299.3

213.8

499.6

221.0

700.2

231.1

900.3

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test item was calculated as follows:
0.015 Pa at 20 °C
0.043 Pa at 25 °C
2.4 Pa at 50 °C

The final results of the vapour pressure were derived from the regression of the results of the methods received by the dynamic and the effusions method (studies submitted under point 4.6 vapour pressure "k_Wielpütz_2007a" and "k_Wilepütz_2007b")