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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 10 Jun 2005 to 13 Oct 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
Cited as Directive 92/69/EEC, A.16
Deviations:
yes
Remarks:
, the maximum oven temperature was 300°C instead of 400°C as required by the guideline. A Grewer test was done in addition, in order to confirm the results up to 500°C.
GLP compliance:
yes
Key result
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other:

Pressure not indicated

Conclusions:
Cerium dioxide has no auto-ignition temperature up to at least 400°C.
Executive summary:

The determination of the relative self-ignition temperature of cerium dioxide was performed according to EU Method A16 only up to 300°C with a plateau. No self-ignition is observed up to 300°C. A Grewer test, performed up to 500°C, was done as a complement of the previous test.
No exothermic reaction is observed up to
500°C. The test item has no auto-ignition temperature up to at least 400°C.

Description of key information

Auto-Ignition temperature > 400°C (pressure not indicated).

Key value for chemical safety assessment

Additional information

The existing data only concerns the bulk form. One experimental study, scored as Klimisch 1 (Cerutti M., 2005), is available and selected as a key study.