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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:
3 September 2012 to 5 September 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Relative self-ignition temperature:
263 °C
Remarks on result:
other:

The test item was a grey powder. Whilst heating, the sample showed a sharp temperature rise, reaching a temperature of 400 °C at an oven temperature of 263 °C.

On completion of the test, the cube was observed to be badly damaged and disintegrated, leaving a pile of white solid on the base of the cube stand.

Conclusions:
Under the conditions of this study, the test material has been determined to have a relative self-ignition temperature of 263 °C.
Executive summary:

The relative self-ignition temperature of the test material was investigated in accordance with the standardised guideline EU Method A.16.

Under the conditions of this study, the test material has been determined to have a relative self-ignition temperature of 263 °C.

Description of key information

Relative self ignition = 263 °C (powder form), EU Method A.16, Atwal (2012).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
263 °C

Additional information

The relative self-ignition temperature of the test material was investigated in a study conducted in accordance with the standardised guideline EU Method A.16 and in line with GLP. The study was performed with tantalum powder. The study was therefore assigned a reliability score in line with the principles for assessing data quality as described in Klimisch (1997). The relative self ignition temperature of tantalum was determined to be 263 °C.