potassium ferricyanide

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

Welham used a photogram printing process called wet cyanotype, where ammonium citrate and potassium ferricyanide are mixed to create a photosensitive solution which is then painted on to watercolour paper and left to dry.

From BBC

In 1842 Herschel sent Children a copy of his paper describing his refinement of Talbot’s process, an invention he called the cyanotype, involving two chemical compounds, ammonium ferric citrate and potassium ferricyanide, which were applied to a sheet of paper with a brush.

From The Guardian

After a secondary fixation in 1% osmium tetroxide, 1.5% potassium ferricyanide, samples were dehydrated through a graded ethanol series, and embedded in situ in an epon analogue resin.

From Nature

When I was growing up my chemistry set had a lot of potentially harmful chemicals like copper sulfate and potassium ferricyanide.

From Scientific American

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

From Scientific American