Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Test material form:
solid: crystalline

Results and discussion

Melting / freezing point
Key result
Decomposition:
yes
Remarks:
The melting point can not be determined because the test item starts to decompose simultaneously with the melting.
Decomp. temp.:
> 123 - < 231 °C
Remarks on result:
not determinable
Remarks:
The melting point can not be determined because the test item starts to decompose simultaneously with the melting.

Applicant's summary and conclusion

Conclusions:
Based on the results of the DSC curves, in the range of 123.25 – 231.23 °C (396.40 –
504.38 K) overlapping endothermic peaks could be observed, which was associated to the
start of melting followed immediate decomposition of the test item. The melting point can
not be determined because the test item starts to decompose simultaneously with the
melting.
Executive summary:

For the determination of the melting point differential scanning calorimetry method was
used. The test was carried out at normal atmospheric pressure.
Based on the results of the DSC curves, in the range of 123.25 – 231.23 °C (396.40 –
504.38 K) overlapping endothermic peaks could be observed, which was associated to the
start of melting followed by immediate decomposition of the test item.

The melting point cannot be determined because the test item starts to decompose simultaneously with the melting.