Potassium Ferricyanide Properties, Molecular Formula, Applications - WorldOfChemicals

Potassium Ferricyanide Properties

Potassium Ferricyanide

Molecule Structure Image

Description

 

Potassium ferricyanide is a chemical compound. The compound has widespread use in blueprint drawing and in photography. Iron and copper toning involve the use of potassium ferricyanide. It is used as an oxidizing agent to remove silver from negatives and positives, a process called dot etching. In color photography, potassium ferricyanide is used to reduce the size of color dots without reducing their number, as a kind of manual color correction. The compound is also used to harden iron and steel, in electroplating, dyeing wool, as a laboratory reagent, and as a mild oxidizing agent in organic chemistry. It is also used in photography with sodium thiosulfate to reduce the density of a negative where the mixture is known as Farmer's reducer; this can help offset problems from overexposure.

Chemical Properties

Appearance Deep red crystals
CAS Number 13746-66-2
Crystal Structure Monoclinic
Density 1.89 g/cm3
EINECS Number 237-323-3
HS Code 28372000
IUPAC Name Potassium Hexacyanoferrate(III)
Melting Point 300 °C
Molar Mass 329.24 g/mol
Molecular Formula C6N6FeK3
Other_Cations Prussian Blue
RTECS Number LJ8225000
Solubility 46.4 g/100ml
Synonyms Red Prussiate;Prussian Red;Potassium
Ferricyanide
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