The caustic effects arise from staying really alkaline, however, if potassium hydroxide is neutralised using a non-harmful acid then it results in being a non-harmful potassium salt. It can be accepted being a food additive underneath the code E525. One route requires melting cyanuric acid or urea with potassium hydroxide. https://is-potassium-cyanide-dead34074.aioblogs.com/83841014/not-known-factual-statements-about-potassium-cyanide-price-per-kg