Iron (III) chloride, which is also called ferric chloride, is a chemical compound with the formula FeCl3. Iron (III) chloride is obtained from the direct combination of chlorine gas with iron under suitable thermal conditions or from the combination of hydrochloric acid with iron. It is slightly soluble in water. It is noncombustible. When wet it is corrosive to aluminum and most metals. 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.

Technical Characteristics

Chemical FormulaFeCl3
Other namesMolysite Flores martis Iron (III) chloride Iron trichloride
CAS Number7705-08-0 (anhydrous) 10025-77-1 (hexahydrate)
Molecular mass   162.2 g/mol
Boiling point316 °C (anhydrous)          
Melting point307 °C (anhydrous)
AppearanceSolid in yellow color or liquid

Applications         

  • Water and wastewater treatment
  • As a disinfectant
  • Fertilizer preparation
  • Electronic industries
  • Extraction of metals
  • Glass and ceramic industries
  • Pharmaceutical industry
  • paint industries
  • Paper industry
  • Odor control (especially in removing H2S)
  • Removal of phosphate and arsenic
  • As a Lewis acid
  • Pigment and paint

Environmental impact of Ferric Chloride

Ferric chloride can have significant environmental impacts. If leaked or improperly disposed of, it can severely lower the pH of water and soil, damaging aquatic and terrestrial environments. The presence of large amounts of ferric chloride can cause iron deposits to form that impede the natural flow of water. Proper disposal and the use of sustainable methods in the management of this substance are essential to reduce its negative effects on the environment.

Safety Measures and Regulations for Handling Ferric Chloride

This substance is highly corrosive and can cause serious damage if it comes into contact with the skin or eyes, so the use of protective equipment such as resistant gloves, safety glasses and protective clothing is recommended. Ferric chloride should be stored in resistant containers and in a cool, dry environment, as it is sensitive to moisture. When using, adequate ventilation is essential to prevent inhalation of vapors.

Packing

Ferric Chloride normally offered in bulk. However according to customer inquiries it is capable to pack in IBC, 220 liters drums.