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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 February - 9 April 2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
not specified
Specific details on test material used for the study:
- Batch n°: ZR027180PUG231
- Analytical purity: 99.3%
- Expiration date: 9 November 2006
- Storage condition: at room temperature, 10 to 30°C
Key result
Remarks on result:
no self-ignition observed up to the melting point

Prior to heating, the test sample was a white free flowing powder.

No exotherm is visible in the temperature/time chart trace of the experiment. The small negative deviation at approximately 130°C corresponds with the melting temperature. After heating, a residue was present in the holder at the bottom

of the furnace, suggesting that the test substance had melted during the test and solidified on cooling.

Conclusions:
On heating the test substance to 180°C, no self-ignition was observed.

Description of key information

From a key study (K1, Bates, 2002) according to EC method A.16, it could be derived that no self-ignition was oberved up to 180°C, which is above the melting temperature of the test substance.

Key value for chemical safety assessment

Additional information