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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:
weight of evidence
Study period:
From 21 January 2016 to 17 February 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
(EC 440/2008)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
static method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Details on test material:
- Name of test material (as cited in study report): SAM-3
- Lot/batch No.: SAM-3/660-137/K1
- Material number: P60689-51
- Storage conditions: ambient temperature, dry, well ventilated area protected from sunlight.
Specific details on test material used for the study:
Tested as receievd.

Results and discussion

Vapour pressure
Remarks on result:
not determinable

Any other information on results incl. tables

The sample was degassed at 19 - 20 °C for approximately 18 hours overnight. During testing with the sample, the temperature was held at 50°C; however, the sample did not reach a stable equilibration over a 28 hour period. Over a 4.5 hour period the pressure was observed to increase from 0.2166 to 2.6 mbar. The sample was taking excessive time to reach an equilibrium pressure at a given temperature therefore it is suspected that the test material contains trapped solvents/ gasses or volatile impurities. Therefore, it is not expected that meaningful data can be obtained from this experiment.

Applicant's summary and conclusion

Conclusions:
The EC A.4 Static method proved to be not suitable for the determination of the vapour pressure of the substance as a pressure equilibrium at constant temperature could not be reached.