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Physical & Chemical properties

Melting point / freezing point

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Description of key information

FeCl2: Anhydrous ca. 674 to 677 ºC

Key value for chemical safety assessment

Additional information


It should be noted that all the soluble iron salt category members decompose at elevated temperatures to give toxic gases. This is sometimes noticed as “sublimation”.

Ferrous chloride, FeCl2

The melting point of the anhydrous salt is high, based on evidence from a reliable published handbook.

Table: Melting points under standard pressure (ISO 5011, i.e. 101.3 kPa)

Category member, Molecular Formula  Anhydrous form Solid hydrate form Aqueous solution
Ferrous chloride, FeCl2 674 -677 °C