One of the mysteries of the English language finally explained.
A salt containing the anion Fe(CN)₆⁴⁻.
- ‘The ferrocyanide reacts with ferric ion to produce a blue color via the Prussian blue indicator, with the intensity of the color being proportional to the glucose concentration in the sample.’
- ‘The process works because soluble copper and iron form insoluble compounds with the ferrocyanide ion.’
- ‘Protons diffuse across a membrane from the anode chamber to the cathode chamber, where they react with the anions to form water or ferrocyanide ions.’
- ‘For some samples a mixture of ferricyanide and ferrocyanide were added to the pellet.’
- ‘We can't say one is more likely than another - the water system map was there, the ferrocyanide was there and the gunpowder was there.’
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