Majdanek concentration camp. Research. Documents. Memories
They come from different GARF page numbers than what is included in Mattogno's book on the camp.
I don't know if they contain info that's already known, or just the typical Polish-Soviet 1944 hallucinations.
Document 8 (page 14/26 "408") says they did some testing:
They're all in Russian, but you can set your browser to auto-translate.There were a total of six such chambers. Some were adapted for killing with carbon monoxide gas, others for killing with the chemical poison "Zyklon B".
On the camp grounds, 535 cans of "Zyklon B" and several cylinders containing carbon monoxide were found. Chemical analysis established the following:
"The contents of the cans were tested for the presence of hydrocyanic acid using the Prussian blue formation reaction, benzidine acetate indicator paper, and sodium nitrate. Samples were taken from 18 cans, and 48 separate reactions were performed. All samples gave a positive result for the presence of hydrocyanic acid with the aforementioned reagents... Thus, the examined contents of the cans represent the preparation "Zyklon B," consisting of specially prepared diatomaceous earth in the form of granules, up to 1 cm in size, impregnated with liquid stabilized hydrocyanic acid."
...
"The technical and sanitary-chemical analysis of the gas chambers at the Majdanek concentration camp fully confirms that all these chambers, especially I, II, III and IV, were intended for and used for the mass and systematic extermination of people by poisoning with highly toxic gases, such as: hydrocyanic acid (the preparation "Zyklon") and carbon monoxide."
Everyone else seems to be way ahead of me on Majdanek, so I'm not sure if these are helpful or old news.