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.

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Example Sentences

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potassium ferricyanide

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

Prepare a fresh solution, as needed each day, by dissolving a crystal of potassium ferricyanide about the size of a pin's head in 25 cc. of distilled water.

From An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes by Henry P. Talbot

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

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

But the best of the lot is a solution of the two substances potassium ferricyanide and potassium bromide, which forms an image of silver ferrocyanide and silver bromide.

From Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements by John A. Tennant

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