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Description of key information

Ferrous slags are not flammable

Key value for chemical safety assessment

non flammable

Additional information

Since ferrous slags are inert inorganics with all relevant analytes in their most stable oxidation state, there is no possibility of incineration.

Ferrous slags are formed at temperatures of >1000 °C and therefore virtually free of oxidizable material. Even if oxidizable material would be present (graphite, traces of metal), due to its manufacturing process, slag cannot undergo ignition.

Justification for classification or non-classification

Ferrous slags are not classified because observation, knowledge of the manufacturing method, and analytical information, indicate that these slags are non flammable