单词	ferrocyanide
释义	ferrocyanide /ˌfɛrəʊˈsʌɪənʌɪd / noun Chemistry 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.
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