Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12.04. - 25.05.2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report Date:
2000

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
July 1992
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
73 °C
Atm. press.:
1 013.3 hPa
Decomposition:
yes
Decomp. temp.:
> 190 °C

Any other information on results incl. tables

As a preliminary measuring for determining the thermal stability of the test substance a DSC was performed in a closed glass pan. The measurement in a closed glass pan shows an endothermic effect (melting) in the range 60-90 °C, with an onset of 75 °C and an exothermal decomposition in the range 180-240 °C, with a decomposition energy of 158 J/g.

Main test

In aluminium pans, the diagrams show the endothermal effect (melting) in the range between 55 and 90 °C, with a medium onset of 73.2 °C and an exothermal decomposition beginning at about 190 °C.

Applicant's summary and conclusion

Conclusions:
The melting point of the test item was 73°C.
Executive summary:

The test substance shows a mean melting point of 73°C determined in a study according to EU Method A.1.