To expose the errors of the Krakow investigators requires presenting a little basic chemistry – so basic that equations have been omitted. First of all, until 1979, Zyklon B was the German company trademark for a pesticide based on hydrogen cyanide (HCN).
As every student of chemistry knows, hydrogen cyanide forms salts, often simply referred to as cyanides. Like hydrogen cyanide itself, these salts are usually highly poisonous. There is one group of cyanides, however, which are not poisonous at all. The best known representatives of this group are the iron cyanides, especially so-called Prussian blue, a pigment discovered in Prussia a few centuries ago. Every college student of chemistry knows Prussian blue, for one of the more important things a chemist must learn is how to dispose of poisonous cyanide salts without endangering life (including one’s own). One simply makes Prussian blue out of it by adding certain iron compounds. Then it can be poured down the sink in good conscience, for Prussian blue is extremely stable and releases no cyanide into the environment.
Understanding the controversy surrounding the Leuchter Report is much easier if one keeps in mind that when hydrogen cyanide and certain iron compounds come together, they form Prussian blue. That is exactly the phenomenon that one can observe when entering the Zyklon B delousing facilities that were used across Europe during the Third Reich and the Epidemic Typhus outbreaks (better-known as ‘Camp Fever’ or ‘War Fever’). A few of them, for example in the Auschwitz, Birkenau, Majdanek, and Stutthof camps, are still intact today. All these facilities have one thing in common: their walls are permeated with Prussian blue. Not just the inner surfaces, but the mortar between the bricks, and even the outside walls of these delousing chambers abound in iron cyanides, exhibiting a patchy blue coloration. Nothing of the sort can be observed in the alleged homicidal “gas chambers” of Auschwitz and Birkenau.
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