Ferrous chloride

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Greenish-white, deliquescent crystals. Ferrous chloride occurs naturally as the mineral lawrencite. The hygroscopic crystals are used as a mordant in dyeing, as a reducing agent, and in metallurgy.

Synonyms and Related Terms

iron chloride; iron dichloride; ferrous (II) chloride tetrahydrate

Other Properties

Soluble in water, acetone, ethanol. Slightly soluble in benzene. Insoluble in ether.

Composition FeCl2
CAS 7758-95-3
Melting Point 670-674
Density 3.16
Molecular Weight mol. wt. = 126.75
Boiling Point 1023

Hazards and Safety

Hazardous by ingestion and inhalation. Contact may cause burns.

Fisher Scientific: MSDS

Sources Checked for Data in Record

  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4091

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