Prussian red

 

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Potassium ferricyanide

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Discovered by Prussian chemist Leopold Gmelin.

• Rhymes: -ɛd

Prussian red (countable and uncountable, plural Prussian reds)

1. (chemistry) Potassium ferricyanide, K₃[Fe(CN)₆], a highly poisonous ferric crystal salt of potassium cyanide used as a pigment.
2. The colour of this compound: a hue of semi-dark brownish red

• Prussian blue

Prussian red (comparative more Prussian red, superlative most Prussian red)

1. Of a brownish hue of red colour.

   Prussian red:  

• Prussian blue