Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 to 25 Sep 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Cross-reference
Reason / purpose:
reference to other study
Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 to 25 Sep 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to other study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27th July 1995
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Remarks:
confirmed by means of TGA
Boiling pt.:
>= 192 °C
Atm. press.:
1 007 mBar
Decomposition:
ambiguous
Decomp. temp.:
>= 192 °C

The test item shows a boiling and/or thermal decomposition earliest at approx. 192 °C (at 1007 mBar) according to the definition in the OECD guideline 103.

 

192 °C (from first measurement)

191°C (from second measurement)

192 °C (from third measurement)

 

From 192 °C the test item shows a boiling and/or thermal decomposition with evaporation of the decomposition components.

The DSC measurements were confirmed by means of TGA measurements under the same measuring conditions.

The start of the area of boiling temperatures is defined by using the on-set temperature.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27th July 1995
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Decomposition:
ambiguous
Decomp. temp.:
>= 184 °C
Remarks on result:
not determinable

Any other information on results incl. tables

The test item shows no melting of the main component up to 184 °C, according to the definition in the OECD Guideline 102 (mean value from repeat determination).

 

185 °C (from first measurement)

184 °C (from second measurement)

184 °C (from third measurement)

 

From 184 °C the test item shows an endothermic effect (decomposition presumably - a melting > 184 °C can't be excluded).

 

The possible decomposition temperatures according to

- the melting results (184 °C)

- the boiling results (192 °C - see section 4.3)

differ due to different measuring conditions (melting - capsulated crucible / boiling- partially capsulated).

 

The cooling runs do not show a crystallization of the main component.

 

At approximately 49 °C the test item shows an endothermic effect. This effect is possibly melting of a part component and / or a solid-solid phase transformation.

In the temperature range between about 82 °C and 94 °C the test item shows a further endothermic effect. This effect is possibly melting of a part component, evaporating of a part component and / or a solid to solid phase transformation.

These effects do not correlate with the melting of the test item (main component) which was verified by subsequent tests with the Kofler-heating bank.

Applicant's summary and conclusion