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Reference
Endpoint:
relative self-ignition temperature (solids)
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:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
Version: 2008.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
GLP certificate dated from 04 May 2021.
Key result
Remarks on result:
no self ignition observed under the test conditions
Remarks:
No self-ignition was observed up to and including 420 °C.

At the start and at the end of the two assays, the test substance was a homogeneous white powder.

Conclusions:
No self-ignition of cerium gadolinium oxide was observed up to and including 420 °C.
Executive summary:

The relative self-ignition temperature of cerium gadolinium oxide was investigated in a GLP-compliant study according to EU A.16 method. The test substance was heated from room temperature to 420 °C at 0.5 °C/min in two successive assays. No self-ignition was observed.

Description of key information

No self-ignition of cerium gadolinium oxide was observed up to and including 420 °C.

Key value for chemical safety assessment

Additional information

An experimental study performed under GLP compliance and in accordance with EU A.16 method was flagged as a key study and assigned a Klimisch score of 1. It reports that cerium gadolinium oxide does not self-ignite up to and including 420 °C.