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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 17 June 2021 to 29 September 2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
Version: 1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
GLP certificate dated from 04 May 2021.
Type of method:
differential scanning calorimetry
Key result
Remarks on result:
other: No melting of the test substance was observed up to and including 600 °C in both assays.
Conclusions:
No melting of cerium gadolinium oxide was observed up to and including 600 °C.
Executive summary:

The melting point of cerium gadolinium oxide was investigated in a GLP-compliant study according to OECD TG 102 using the Differential Scanning Calorimetry (DSC) method. The test substance was heated from room temperature to 600 °C at 10 °C/min in two successive assays. No melting was observed up to and including 600 °C, meaning that the melting point is above this temperature.

Description of key information

No melting of cerium gadolinium oxide was observed up to and including 600 °C, meaning that the melting point is above this temperature.

Key value for chemical safety assessment

Additional information

An experimental study performed under GLP compliance and in accordance with OECD TG 102 was flagged as a key study and assigned a Klimisch score of 1. It reports that cerium gadolinium oxide does not melt up to and including 600 °C.