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Physical & Chemical properties

Flammability

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Description of key information

Screening tests (UN N1) results are negative for amorphous and crystalline boron powders. Boron powders are not classified as a flammable solid. Amorphous and crystalline boron powders do not ignite within 5 minutes after contact with air (UN N2 test). Both powders are not classified as pyrophoric solids.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

Justification for classification or non-classification

Screening tests (UN N1) results are negative for amorphous and crystalline boron powders. Boron powders are not classified as a flammable solid. Amorphous and crystalline boron powders do not ignite within 5 minutes after contact with air (UN N2 test). Both powders are not classified as pyrophoric solids.