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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
static method

Test material

Constituent 1
Chemical structure
Reference substance name:
(Z)-hex-3-enyl isobutyrate
EC Number:
255-424-0
EC Name:
(Z)-hex-3-enyl isobutyrate
Cas Number:
41519-23-7
Molecular formula:
C10H18O2
IUPAC Name:
(Z)-hex-3-enyl isobutyrate
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.