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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

Aluminium metal as a solid is not known to be flammable.

Aluminium powder may be highly flammable.

Key value for chemical safety assessment


Additional information

Based on industrial uses of aluminium metal as a solid, its chemical structure, and known physical-chemical properties, the solid form is not known to be flammable.

Aluminium powder may be highly flammable depending on particle size and shape.

Each product needs to be tested and classified according to test results.

Flammability additional key value for CSA: non flammable


Justification for classification or non-classification

Substance is classified as A.1 (non-combustible material) in EN 13501 -1:2003 (fire classification of construction products and building elements) and classified (not combustible) for flammability by the National Fire Protection Association (NFPA).