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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:
29 May 2017 to 30 May 2017
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)
Version / remarks:
Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), Method A.16, Official Journal of the European Union L 142 of 31 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
No further details specified in the study report.
Key result
Remarks on result:
no self ignition observed under the test conditions

Three replicate tests were performed. The relative self-ignition temperature of 6,6’-di-tert-butyl-2,2’-thiodi-p-cresol: no ignition was observed up to 90 °C.

Conclusions:
Three replicate tests were performed. The relative self-ignition temperature of 6,6’-di-tert-butyl-2,2’-thiodi-p-cresol: no ignition was observed up to 90 °C.
Executive summary:

The purpose of this test is to provide preliminary information on the auto-flammability of solid substances at elevated temperatures. A specific amount of the test substance is placed in an oven, in a wire-mesh cube, at room temperature; the temperature difference/time curve of the sample of test item is recorded while the temperature of the oven is increased to the melting point of test item (to 90 °C) at a rate of 0.5 °C/min. For the purpose of this test, the temperature of the oven at which the sample temperature reaches 400 °C by self-heating is called the self-ignition temperature.

 

Three replicate tests were performed. No relative self-ignition temperature of 6,6’-di-tertbutyl-2,2’-thiodi-p-cresol was observed up to 90 °C.

 

The test item was not auto-flammable under the conditions of the test.

Description of key information

The test item was not auto-flammable under the conditions of the test.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
90 °C

Additional information

The purpose of this test is to provide preliminary information on the auto-flammability of solid substances at elevated temperatures. A specific amount of the test substance is placed in an oven, in a wire-mesh cube, at room temperature; the temperature difference/time curve of the sample of test item is recorded while the temperature of the oven is increased to the melting point of test item (to 90 °C) at a rate of 0.5 °C/min. For the purpose of this test, the temperature of the oven at which the sample temperature reaches 400 °C by self-heating is called the self-ignition temperature.

 

Three replicate tests were performed. No relative self-ignition temperature of 6,6’-di-tertbutyl-2,2’-thiodi-p-cresol was observed up to 90 °C.

The test item was not auto-flammable under the conditions of the test.

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