Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010-09-14
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report Date:
2012

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
other: Differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Test item: Cobalt White Alloy
Physical state: Golden-coloured granules
Storage conditions: Ambient temperature

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 600 °C
Atm. press.:
1 013 mBar
Remarks on result:
other: The test item has no melting point under atmospheric conditions up to 600°C. There was no atmospheric pressure stated, it was assumed to be 1013mBar.

Any other information on results incl. tables

Thermal Stability

The DSC-measurement in a closed glass crucible with the test item showed no thermal effects in the temperature range 30 °C to 450 °C.

Melting Point / Melting Range (DSC)

The measurement in an aluminium crucible with a hole showed no significant endothermic effect or exothermic effects up to the maximum temperature of 600 °C. No mass loss was detected.

An optical inspection after the measurement showed that the test item was unchanged (regarding both the physical form and the colour of the test item).

Thus it was concluded, that the test item does not melt within the tested temperature range of 40 – 600 °C.

Applicant's summary and conclusion

Conclusions:
The test item has no melting point under atmospheric conditions up to 600°C.