POTASSIUM FERRICYANIDE

Definition: POTASSIUM FERRICYANIDE

POTASSIUM FERRICYANIDE

1. (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2 , consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

Source: Webster's Revised Unabridged Dictionary (1913)

Specialty Definition: Potassium ferricyanide

Potassium ferricyanide (K₃Fe(CN)₆), also known as Red prussiate or Prussian Red, is a coordination compound that is stable at room temperature and pressure and forms ruby red crystals and powder. It is manufactured by passing chlorine gas through solutions of potassium ferrocyanide. Potassium ferricyanide then separates out of the solution.

The compound has widespread use in blueprints and in photography. Iron and copper toning involve the use of potassium ferricyanide. Potassium ferricyanide is used as a reducing 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 temper iron and steel, in electroplating, dyeing wool, as a laboratory reagent, and as a mild oxidizing agent in organic chemistry.

See also: potassium ferrocyanide, Prussian blue

Frequency of Internet Keywords: POTASSIUM FERRICYANIDE

Modern Translation: POTASSIUM FERRICYANIDE

Language		Translations for "POTASSIUM FERRICYANIDE"; alternative meanings/domain in parentheses.
Danish		kaliumferricyanid. (various references)

Dutch		rood bloedloogzout, kaliumferricyanide. (various references)

French		ferricyanure de potassium (potassium ferricyanide K3 ( Fe ( CN ) 6 )). (various references)

German		Kaliumferricyanid (K3Fe(CN)6). (various references)

Greek		σιδηρικυανιούχο κάλιο (K3Fe(CN)6), σιδηροκυανιούχο κάλιο (potassium ferrocyanide). (various references)

Italian		K3Fe(CN)6 (K3Fe(CN)6), ferricianuro di potassio (K3Fe(CN)6). (various references)

Pig Latin		otassiumpay erricyanidefay

Portuguese		ferricianeto de potássio. (various references)

Spanish		ferrocianuro de potasio (K3Fe(CN)6, K4 FE(CN)6, potassium ferrocyanide, yellow prussiate of potash), ferricianuro potásico. (various references)
Source: compiled by the editor from various translation references.