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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:
25 April 2007 to 23 August 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
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:
356 °C
Remarks on result:
other: Conducted at ATP
Remarks:
at atm. press. of 101325.0 Pa

An exothermic reaction occurred at 180°C and led to a maximum temperature of 438 °C. The temperature of the test item exceeded 400°C at a corresponding oven temperature of 356 °C.

Conclusions:
The relative self-ignition temperature is 356°C, according to the testing guideline for autoflammability (solids - determination of relative self-ignition temperature) in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.16.
Executive summary:

The purpose of this study was the determination of the relative self-ignition temperature of the test item according to the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Part A: Methods for the determination of physico-chemical properties, A.16. Auto-flammability (solids - determination of relative self-ignition temperature). The study was performed in accordance with the Principles of Good Laboratory Practice (GLP) and reported with a valid GLP certificate.

 

8 cm3(5.0 g) of the test item were placed in an oven at 23°C. The temperature/time curve relating to conditions in the centre of the sample was recorded while the temperature of the oven was increased to 400°C at a rate of 0.5 °C/min.

The temperature of the oven at which the sample temperature reaches 400°C by self-heating is called the self-ignition temperature for the purpose of this test.

 

An exothermic reaction occurred at 180°C and led to a maximum temperature of 438 °C. The temperature of the test item exceeded 400°C at a corresponding oven temperature of 356 °C.

 

The relative self-ignition temperature is 356°C, according to the testing guideline for auto-flammability (solids - determination of relative self-ignition temperature) in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.16.

Description of key information

The temperature of the test item exceeded 400°C at a corresponding oven temperature of 356 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
356 °C

Additional information

An exothermic reaction occurred at 180°C and led to a maximum temperature of 438 °C. The temperature of the test item exceeded 400°C at a corresponding oven temperature of 356 °C.

 

The relative self-ignition temperature is 356°C, according to the testing guideline for auto-flammability (solids - determination of relative self-ignition temperature) in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Method A.16.