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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:
17 January 2017 to 26 January 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline 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:
2008
Deviations:
no
GLP compliance:
yes (incl. certificate)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Batch No.of test material: 16-9362
- Expiration date of the lot/batch: 07 November 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature, under nitrogen in the dark

Key result
Relative self-ignition temperature:
351 °C

The test material was a light grey powder. Whilst heating the test material, no relevant exothermic reaction/self-heating of the sample has been observed. On completion of the test, the test material was an off white solid.

Conclusions:
Under the conditions of this study the test material has been determined to have a relative self-ignition temperature of 351 °C.

Description of key information

Under the conditions of this study the test material has been determined to have a relative self-ignition temperature of 351°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
351 °C

Additional information

The relative self-ignition temperature of the test material was determined in accordance with the standardised guideline EU Method A.16 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A cube was completely filled with the test material and placed in the centre of the oven at room temperature. A thermocouple was placed in the centre of the sample and another in the oven. The oven temperature was programmed to increase from ambient to 400°C at a rate of 0.5°C/min. The temperature/time curves relating to the condition in the centre of the sample and the oven were recorded on a data logger. Before and after the test the appearance of the test material was recorded.

The test material was a light grey powder. Whilst heating the test material, no relevant exothermic reaction/self-heating of the sample has been observed. On completion of the test, the test material was an off white solid.

Under the conditions of this study the test material has been determined to have a relative self-ignition temperature of 351°C.