Reaction mass of 2-(3-ethylphenyl)oxirane and 2,2’-(1,3-phenylene)dioxirane and 2,2'-(1,4-phenylene)dioxirane

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Between 04 June 2009 and 17 August 2009.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of inspection: 19/08/2008 Date of Signature: 04/03/2009

Type of method:

other: The determination was carried out using BS4633: Method for the Determination of Crystallizing Point

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of 2-(3-ethylphenyl)oxirane and 2,2’-(1,3-phenylene)dioxirane and 2,2'-(1,4-phenylene)dioxirane

EC Number:

935-853-6

IUPAC Name:

Reaction mass of 2-(3-ethylphenyl)oxirane and 2,2’-(1,3-phenylene)dioxirane and 2,2'-(1,4-phenylene)dioxirane

Constituent 2

Reference substance name:

Reaction mass of bis(epoxyethyl) benzene and (ethylphenyl) oxirane

IUPAC Name:

Reaction mass of bis(epoxyethyl) benzene and (ethylphenyl) oxirane

Details on test material:

- Name of test material (as cited in study report): Reaction mass of bis(epoxyethyl) benzene and (ethylphenyl) oxirane
- Substance type: Multiconstituent
- Physical state: clear extremely pale yellow liquid
- Analytical purity: 80 - 95%
- Lot/batch No.: 200901317-17
- Stability under test conditions : stable
- Storage condition of test material : approximately 4°C in the dark

Results and discussion

Melting / freezing point

Melting / freezing pt.:

< 253 K

Applicant's summary and conclusion

Conclusions:

The freezing temperature of the test material has been determined to be less than 253 ± 0.5 K.

Executive summary:

Method: The determination was carried out using BS4633: Method for the Determination of Crystallizing Point, Method A1 Melting/Freezing Temperature ofCommissionRegulation (EC) No 440/2008 of 30 May 2008. Procedure:An aliquot of test material was placed into a test tube containing a thermometer. A wire loop with which the sample could be agitated was placed inside the tube to ensure sample homogeneity during cooling. The test tube was surrounded by a glass jacket and then placed into a large beaker containing a dry ice/acetone mixture. The temperature and observations of the test material were recorded approximately every 30 seconds.

The dry ice/acetone bath was maintained until the temperature had reached approximately -20°C or until the test material solidified.

The determination was carried out in duplicate.

Graphs of temperature (K) versus ti(seconds) were constructed to obtain the freezing temperature (Figure 4.1andFigure 4.2).

Observations:           The test material did not change in appearance during cooling
Result:                       Freezing temperature <253 K

Conclusion:

The freezing temperature of the test material has been determined to be less than 253 ± 0.5 K.