Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 April 2017 to 28 June 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
static method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
TEST MATERIAL
Name ( stated on the report) : Hexenyl-3-cis Isobutyrate
Appearance: Colourless to pale yellow liquid
Batch: VE00450298
Expiry date: July 15, 2017

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
216 Pa
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
273 Pa

Applicant's summary and conclusion

Conclusions:
Vapour pressures of 216 Pa at 20 °C and 273 Pa at 25 °C were determined.
Executive summary:

First, a determination of the vapour pressure of HEXENYL-3-CIS ISOBUTYRATE according to OECD 104 resp. EU A.4 using the effusion method: Knudsen Cell was performed.

As at the third measurement of experiment 2 (nominal temperature 40 °C) of the effusion method all vials were empty, the static method was performed.

Using the static method, vapour pressures of 216 Pa at 20 °C and 273 Pa at 25 °C were determined.

These values were calculated from the regression of 12 individual measurements, which were performed in a temperature range of 14.8 – 65.5 °C.

The measured values for pressure P and temperature T were used to calculate pairs of log P and 1/T. These values were plotted, from the linear regression, vapour pressures at ambient temperature were determined.