IRON (III) CHLORIDE - GERMAN POWDER
CAS number: 7705-08-0, 10025-77-1 (hexahydrate)
UN number: 1773 (anhydrous) 2582 (aqueous solution)
Chebi: 30808 RTECS number: LJ9100000
Molecular formula: FeCl3
Molar mass: 162.2 g / mol (anhydrous) 270.3 g / mol (hexahydrate)
Appearance: reflected light green-black; Purple-red with transmitted light
hexahydrate: yellow solid
aq. Solutions: Brown
Odor: mild HCl
Density: 2.898 g / cm3 (anhydrous) 1.82 g / cm3 (hexahydrate)
Melting point: 306 ° C (anhydrous) 37 ° C (hexahydrate)
Boiling point: 315 ° C (anhydrous, decomp)
280 ° C (hexahydrate, Decay) (Partial decomposition for FeCl 2 Cl 2)
Solubility in water: 74.4 g / 100 mL (0 ° C)
92 g / 100 mL (hexahydrate, 20 ° C)
The chemical formula is FeCl3 in the form of 40% solution. The active reaction with water is achieved in the range of pH 6-9. Dark brown. Iron three chloride is a dark brown chemical. As it is acidic, it is important to use plastic or stainless steel tanks during handling and storage.
Fe Cl Fe Cl3
Production and Reactions
It can be found in the iron and steel industry as a small particle and powdered waste.
Tufal HCl ----> Fe Cl3
Sinter furnaces can be recovered as a source of iron.
It is used as a coagulant in waste water treatment and drinking water production.
Iron (III) chloride Hydrometallurgy is used as a leaching agent. For example Si production. (Silgrain process)
It is used as a catalyst in most industrial applications.