Relating to or containing a compound of ferric iron and prussic acid or cyanide.
Compound of 'ferri-' (iron in +3 state) and 'prussic' (relating to prussic acid, hydrogen cyanide). Emerged in 18th-19th century chemistry as researchers studied iron-cyanide complexes.
The word 'ferriprussic' connects to 'Prussian blue,' which ironically was invented accidentally by a dye maker in Berlin! Despite the scary 'prussic acid' part of the name, Prussian blue has been used safely for centuries as a pigment and even medically to treat heavy metal poisoning.
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