Registration Dossier

Diss Factsheets

Physical & Chemical properties

Flammability

Currently viewing:

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