Ferric chloride — otherwise known as flocculant, iron trichloride, or iron(III) chloride — is often found in the form of an aqueous solution that can be anywhere from colorless to light brown in appearance with a faint hydrochloric acid odor. It is a chemical compound consisting of iron and chlorine. Much ferric chloride is recycled from a liquid left behind in the steel-making process. Without ferric chloride, a clear, clean public supply of water of any sort would be difficult to obtain.

  • Synonyms: Iron (III) Chloride, Iron Chloride, Iron Perchloride, Iron Trichloride, Iron Trichloride Solution
  • INCI: Ferric Chloride
  • Chemical formula: FeCl3
  • CAS #: 7705-08-0
  • Hazard: 8, Corrosive Liquid


Use the links below to view all package sizes for these specific products:

Ferric Chloride 37-42%
Ferric Chloride 37-42% Drinking Water
Ferric Chloride 38-42% NSF
Ferric Chloride Anhydrous

Product Specifications

AppearanceReddish brown liquid
OdorSlight iron acid odor
SolubilitiesSoluble in water
Density2.9 g/cm³
Boiling point599°F
Freezing point-15°F
Molecular weight162.2 g/mol
Weight per gallon11.7552 lbs/gal
ClassInorganic Salt
GradesNF Grade, Reagent


Ferric Chloride uses include engraving, photoengraving, electronics, flocculant, metal treating, odor control, oxidizer, potable water treatment printed circuit boards, wastewater treatment, water treatment.

  • Coatings and Construction: It is used in metal treating.
  • Water Treatment: It is used in water and wastewater treatment to precipitate phosphate as iron(III) phosphate. It is used in wastewater treatment for odor control.
  • Others: Some American coin collectors use ferric chloride to identify the worn-down dates on Buffalo nickels. Many veterinarians use ferric chloride to treat bleeding animal claws if one has been nicked. Ferric chloride is also used to make printed circuit boards and energy storage systems, among seemingly endless other applications.

Quick Answers

Ferric chloride is a chemical solution that effectively clumps together minute contaminant particles in water solutions.

Knowing where to get ferric chloride is probably just the beginning of your company’s chemical requirements, and Brenntag can fulfill them all in one place, with 10,000 products, a world-class and about 180,000 customers. We think you will find that the experience, global reach, inventory and commitment to quality and safety inherent in all of our chemical distribution will fit in perfectly with your needs as a chemical supplier or the needs of your industry.

Your best approach will be to contact Brenntag North America. Brenntag is the established global market leader in ingredient and chemical distribution and can fully supply all your acetic acid and other chemical needs.

Ferric chloride is available in liqbin, drum, and bulk quantities. You can view all ferric chloride products and package sizes on Brenntag Connect.

You can download a copy of the SDS for ferric chloride from Brenntag Connect.

Download the SDS now.


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