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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:
2010-03-30 to 2010-03-31
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study reliable without restrictions
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
, 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed 2009-11-26
Relative self-ignition temperature:
> 400 °C
Observations after the test:

The cube was full of a beige powder.

Key result:

The test material has been determined not to have a relative self-ignition temperature below 400 °C.

The temperature/time curve is presented as an attached illustration.

Conclusions:
The test material has been determined not to have a relative self-ignition temperature below 400 °C.

Description of key information

The test material showed no relative self-ignition temperature below 400 °C (study result, EU A.16 method).

Key value for chemical safety assessment

Additional information

The test material showed no relative self-ignition temperature below 400 °C.Calcium carbonate was also found to be not auto flammable in a study performed using Method N.4 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 4th revised edition, 2003. On this basis it may be concluded that grades of calcium oxide containing up to 35% calcium carbonate will not be auto flammable.