(Z)-hex-3-enyl isobutyrate

Vapour pressure

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

Test material information

Constituent 1

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 pressure

Vapour pressure 1

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

216 Pa

Vapour pressure 2

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.