1. Prussian blue - Noun
2. Prussian blue - Adjective
any of various blue pigments
a dark greenish-blue color
Source: WordNetIn 1752, the French chemist Pierre Macquer made the important step of showing that Prussian blue could be converted to iron oxide plus a volatile component and that these could be used to reconstitute it. Source: Internet
Ishizawa Tanaka 1986, p. 38 Merritt 1990, p. 18 To keep the blocks for each colour aligned correctly registration marks called kentō were placed on one corner and an adjacent side.sfn Prussian blue was a prominent synthetic dye in the 19th century. Source: Internet
"Blue acid") because of its acidic nature in water and its derivation from Prussian blue. Source: Internet
History of discovery The red colored ferricyanide ion, one component of Prussian blue Hydrogen cyanide was first isolated from a blue pigment ( Prussian blue ) which had been known since 1704 but whose structure was unknown. Source: Internet
I always detested Prussian blue. Source: Internet
Its formation can be used as a simple wet chemistry test to distinguish between aqueous solutions of Fe 2+ and Fe 3+ as they react (respectively) with potassium ferricyanide and potassium ferrocyanide to form Prussian blue. Source: Internet