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Iron(III) chloride

CAS 7705-08-0Cl3Fe162.2 g/mol

Iron trichloride is an iron coordination entity. It has a role as a Lewis acid and an astringent.

IUPAC: trichloroiron

Iron(III) chloride molecular structure

PubChem

Physical & Chemical Properties

Physical and chemical properties
Melting Point583 °F (NTP, 1992)
Boiling Point599 °F at 760 mmHg (Decomposes) (NTP, 1992)
Density2.8 at 68 °F (anhydrous solid) (USCG, 1999) - Denser than water; will sink
Solubility5 to 10 mg/mL at 68 °F (NTP, 1992)
Vapor Pressure1 mmHg at 381 °F (NTP, 1992)
AppearanceFerric chloride is an orange to brown-black solid. It is slightly soluble in water. It is noncombustible. When wet it is corrosive to aluminum and most metals. Pick up and remove spilled solid before adding water. It is used to treat sewage, industrial waste, to purify water, as an etching agent for engraving circuit boards, and in the manufacture of other chemicals.

Data: PubChem · Last updated: 4/20/2026

GHS Classification

No GHS classification data available.

Classification data is sourced from ECHA.

Regulatory Compliance

TSCA

Listed

note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory

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SVHC

Not Listed

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FDA GRAS

Not Listed

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No trade flow data available for this chemical.

HS Code(s): 2827

Data: UN Comtrade

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