Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21 November 2007
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Valid method according to company guideline, but limited documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Principles of method if other than guideline:
Differential Scanning Calorimetry (DSC)
Type of method:
thermal analysis
Remarks:
DSC

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Licowax OP
- Physical state: Solid
- Analytical purity: 100% (w/w)

Results and discussion

Melting / freezing point
Melting / freezing pt.:
ca. 62 °C
Decomposition:
yes
Decomp. temp.:
> 160 °C

Any other information on results incl. tables

The endothermal effect in the DSC curve has several peaks, likely caused by the composition of the substance (several components with maybe somewhat different melting points). Therefore, the onset of the highest peak (about in the middle of the whole effect) is considered as melting point of the test substance.

Under air, decomposition due to oxidation occurs above 160 °C (see section 4.3 and attached expert statement).

Applicant's summary and conclusion

Conclusions:
The melting point of the test substance is 62 °C.
Executive summary:

Differential Scanning Calorimetry (DSC) reveals a melting point of 62 °C of the test substance.