Potassium ferrocyanide is safe for consumption despite being structurally close to potassium cyanide
the verdict
SUPPORTED
the evidence backs this
confidence 83/100
Although potassium ferrocyanide contains a cyanide group in its chemical structure, toxicological evaluations confirm that it is safe for consumption and does not release free cyanide, owing to the strong coordination of the iron-cyanide complex.
Evidence for · 2
Re‐evaluation of sodium ferrocyanide (E 535), potassium ferrocyanide (E 536) and calcium ferrocyanide (E 538) as food additives
2018 · cited by 17
Safety evaluations establish that potassium ferrocyanide is safe for consumption within authorized levels as a food additive, because the intact complex does not release free cyanide under physiological conditions.
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More for · 1
Safety and efficacy of feed additives consisting of sodium ferrocyanide and potassium ferrocyanide for all animal species (Eusalt a.i.s.b.l.).
2023 · cited by 2
Regulatory assessments confirm that potassium and sodium ferrocyanide are safe for use in animal nutrition and do not raise consumer safety concerns despite containing cyanide within their stable coordination structures.