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Physical & Chemical properties

Auto flammability

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Description of key information

Autoflammability testing considered unnecessary on the basis that the melting point of Silicon nitride is approximately 1900°C and the material does not self-combust up to this temperature.

Key value for chemical safety assessment

Additional information

In accordance with Annex VII, column 2 of the REACH Regulation, this study does not need to be conducted if preliminary results exclude self-heating of the substance up to 400°C. The melting point of Silicon Nitride is 1900°C and the material does not self-combust up to this temperature; on this basis it may be concluded that testing for autoflammability is not justified.