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Zyklon B (German: [tsyˈkloːn ˈbeː] ⓘ; translated Cyclone B) was the trade name of a cyanide-based pesticide invented in Germany in the early 1920s. It consists of hydrogen cyanide (prussic acid), as well as a cautionary eye irritant and one of several adsorbents such as diatomaceous earth .
A can of Zyklon B with adsorbent granules and original signed documents detailing ordering of Zyklon B as "materials for Jewish resettlement" (on display at Auschwitz concentration camp museum) Tesch & Stabenow was founded in 1924 in Hamburg. [2] In 1925, the firm became the only distributor of Zyklon on behalf of Degesch east of the Elbe.
The contents of the report, in particular Leuchter's methodology, are heavily criticized. James Roth, the manager of the lab that carried out the analysis on the samples Leuchter collected, swore under oath to the results at the trial. Roth did not learn what the trial was about until he got off the stand. [5]
Exposure to lower levels of cyanide over a long period (e.g., after use of improperly processed cassava roots; cassava is a staple food in various parts of West Africa) results in increased blood cyanide levels, which can result in weakness and a variety of symptoms, including permanent paralysis, nervous lesions, [14] [15] [16] hypothyroidism ...
Several IG Farben executives said after the war that they did not know about the gassings, despite the increase in sales of Zyklon B to Auschwitz. IG Farben owned 42.5 percent of Degesch shares, and three members of Degesch's 11-person executive board, Wilhelm Rudolf Mann , Heinrich Hörlein and Carl Wurster , were directors of IG Farben. [ 52 ]
It is advised to check the references for photos of reaction results. [1] Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.
A blood agent is a toxic chemical agent that affects the body by being absorbed into the blood. [1] Blood agents are fast-acting, potentially lethal poisons that typically manifest at room temperature as volatile colorless gases with a faint odor. [1]
Ironically, Zyklon B inflicted similar symptoms. [ 20 ] By June 1942 the main producer of gas vans, Gaubschat Fahrzeugwerke [ de ] GmbH, had delivered 20 gas vans in two models (for 30–50 and 70–100 individuals) to Einsatzgruppen, out of 30 that were ordered from that company.