Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
September 9, 1998
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Valid method according to company guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report Date:
1998

Materials and methods

Principles of method if other than guideline:
Differential thermal analysis (DTA)
Type of method:
thermal analysis
Remarks:
DTA

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Melting / freezing pt.:
323 °C
Decomposition:
yes
Decomp. temp.:
325 °C

Any other information on results incl. tables

The DTA shows an endothermal reaction with an onset at 322.84 °C (rounded value of 323 °C taken as melting point) and a peak at 324.21 °C. Decomposition starts from the melting substance. The (exothermal) decomposition reaction shows an onset at 325.08 °C (rounded value of 325 °C taken as decomposition temperature) and a peak at 330.57 °C, the reaction energy of the decomposition being -610 J/k (mean from 2 measurements).

Applicant's summary and conclusion

Conclusions:
Decomposition starts from the melting substance, with a melting point of 323 °C and a decompisition temperature of 325 °C.
Executive summary:

The DTA shows decomposition from the melting substance, the melting point being 323 °C and the decomposition temperature being 325 °C.