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REACH

Iron

EC number: 231-096-4 | CAS number: 7439-89-6

Life Cycle description
Uses advised against

Physical & Chemical properties

Flammability

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Administrative data

Link to relevant study record(s)

Description of key information

The different forms of iron placed on the market were characterized for their auto-flammability and flammability properties.
Carbonyl Iron Powder is classified category 1 for self-heating and category 1 for flammability under EU Globally Harmonised System.
Reduced Iron Catalyst is classified category 1 for self-heating under EU Globally Harmonised System.

Key value for chemical safety assessment

Additional information

Based on chemical structure, flammability in contact with water is not predicted, however, the substance may ignite spontaneously at ambient temperature under certain conditions.

Phys-chem endpoint	carbonyl iron powder	Iron powders	Pig iron	DRI	HBI	Elemental iron	Reduced Iron Catalyst	Electrolytic iron
Self-heating	Category 1 Self-heating	NC	NC	NC	NC	NC	Category 1 Self-heating	NC
Pyrophoric solid	NC	NC	NC	NC	NC	NC	NC	NC
Solid flammability	Category 1 Flammability	NC	NC	NC	NC	NC	NC	NC
Emission of gas in contact with water	NC	NC	NC	NC	NC	NC	NC	NC

NC: Not Classified

Justification for classification or non-classification

Iron Powder (uncoated, made by thermal decomposition of iron pentacarbonyl) is classified flammable solid category 1. The burning time is below 5 min in the test UN N.1

Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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