potassium ferricyanide

American  

noun

Chemistry.

1. a bright-red, crystalline, water-soluble, poisonous solid, K 3 Fe(CN) 6 , used chiefly in the manufacture of pigments, as Prussian blue, and of paper, especially blueprint paper.

---

Example Sentences

Cyanotype is a photographic medium that uses ferric ammonium citrate, potassium ferricyanide, and simple sunlight to make an image.

From Scientific American • Dec. 23, 2011

In most cases a blue coloration will appear; the addition of 1-2 drops of potassium ferricyanide solution with formation of a blue coloration indicates the presence of Neradol ND without fail.

From Synthetic Tannins by Grasser, Georg

Wool is dyed by heating it in a solution containing potassium ferricyanide and sulphuric acid.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various

The prints in Prussian blue are produced in a similar manner, the sensitive salt with which the calico is prepared being ammonium ferricitrate, and the developer potassium ferricyanide.

From Scientific American Supplement, No. 810, July 11, 1891 by Various

They combine readily with the alkyl iodides to form alkyl acridinium iodides, which are readily transformed by the action of alkaline potassium ferricyanide to N-alkyl acridones.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg