• February 21, 2024

Extra Ferric Chloride


In industrial application, iron(III) chloride is used in sewage treatment and drinking water production. In this application, FeCl3 in slightly basic water reacts with the hydroxide ion to form a floc of iron(III) hydroxide, or more precisely formulated as FeO(OH)-, that can remove suspended materials.

Another important application of iron(III) chloride is etching copper in two-step redox reaction to copper(I) chloride and then to copper(II) chloride in the production of printed circuit boards

Iron(III) chloride is used as catalyst for the reaction of ethylene with chlorine, forming ethylene dichloride (1,2-dichloroethane), an important commodity chemical, which is mainly used for the industrial production of vinyl chloride, the monomer for making PVC.


SpecificationsFeCl3 LIQUIDFeCl3 ANHYDROUS
AppearanceA Clear dark Red/Brown liquidGreenish to Black, Crystalline powder
FeCl3 Concentration40 % (min.)98%
Ferrous Salt as FeCl20.10 % max.0.10 % max.
Free Acid as HCI0.02 % maxN.A
Insolubles0.05 % max0.50 % max.
Specific Gravity@25°1.42 – 1.462.8
Viscosity12.1 centi. for a 40% solutionN.A
Crystallization40 % FeCl3-25°FN.A
BIS SpecificationIS: 711-1970IS: 711-1970
Molecular weight162.5162.5
Melting Point282° C282° C
Solubilitymiscible in watermiscible in water

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