Archie wrote: ↑Thu May 22, 2025 10:31 pm
I would not say that lack of Prussian blue all by itself 100% disproves the mass gassing with Zyklon story. But it is undeniably evidence against the story. Germar Rudolf's book goes into great length on the question of what conditions are needed for Prussian blue to form. Recently constructed underground cellars very likely would have been ideal.
The lack of Prussian Blue is just data, not inherently evidence against homicidal gassing — unless it contradicts a well-formed formation hypothesis.
Imagine checking a crime scene for fingerprints. If the suspect wore gloves, and you find no fingerprints, that’s data, not evidence that the suspect wasn’t there.
Your argument (presumably copied from AI) is that 1) the gas chambers used a lower concentration than the delousing chambers, 2) The gassings were short and the ventilation was super efficient meaning the exposure period was not that long.
The concentration argument is something that they made up in the late 80s only AFTER revisionists pointed out the Prussian blue problem. The argument is that the toxicology literature says 300 ppm is fatal for humans, and they just that this must have been the exact exposure that was used. This is a bogus argument because 1) Achieving the absolute theoretical minimum for all the gassing would require some effort, 2) There is no evidence the Germans were targeting 300 ppm, 3) US gas chambers that used HCN used a much higher concentration (over 3,000 ppm), 4) there are zero testimonies that support this 300 ppm figure. In fact, most of the testimony suggest that they did not calculate very carefully and used multiple cans, 5) Even if it was 300 ppm (which again they made up in desperation in the late 1980s) there's no evidence that that amount would be insufficient for Prussian blue to form.
I use AI to write the response. I still read and understand it and then select what is most relevant and sometimes edit it myself. To be anti-AI is kind of like telling somebody not to trust anything on the internet. You should verify it all but it's not worthless information.
The concentration range predates revisionism. Toxicology data from the early 20th century (including German sources) clearly establishes that 200–300 ppm of hydrogen cyanide is lethal within minutes. Herbert Flury was a German toxicologist who wrote in the 1930s while working for the Wehrmacht that 300 ppm kills humans in under 10 minutes.
Claim 1: "Achieving minimum exposure would require effort"
The Nazis were not trying to minimize dosage. The historical evidence (e.g. testimony, forensic architecture, Zyklon B purchase records) suggests they used more than the minimum to ensure rapid death. But that doesn’t mean they reached delousing-level ppm or had the conditions needed to form Prussian Blue. The key issue is exposure duration and surface chemistry, not maximum ppm.
Claim 2: "No evidence the Germans were targeting 300 ppm"
Nobody claims that the Nazis were targeting 300 ppm and they most likely weren't. The reason that the 300 ppm threshold is important is because that is a minimum amount needed for mass killing. Using more than 300 ppm does not guarantee Prussian Blue formation unless you have the right pH, moisture, and iron availability. So even if they used 1000+ ppm, Prussian Blue still might not form under those conditions.
Claim 3: "US gas chambers used 3000+ ppm"
This is true but the goal of U.S. chambers was legal certainty which required a dose far in excess of the lethal dose. The Nazis were striving for efficient mass death, not engineering precision.
Claim 4: "No testimonies support 300 ppm; they used multiple cans"
This is also true, but it doesn't matter. Zyklon B releases HCN gradually and using multiple cans does not necessarily mean they used 3000 ppm concentrations. Final ppm is determined by all sorts of environmental factors.
Testimonies consistently support fast death (5–20 minutes), aligning with toxicological models for low-to-mid-range ppm under crowded, high-CO₂ conditions.
5. "No evidence that 300 ppm would be insufficient for Prussian Blue to form"
This is not correct. Having a high even ppm is necessary, but not sufficient for Prussian Blue to form. You still need the right chemical conditions with requires free iron in the walls, alkaline conditions, and sustained exposure. It is definitely possible to have 300 ppm and not form Prussian Blue. If you aren't satisfied with that answer, I can go deeper on that.
You other argument is about the exposure period. This is another BS argument that they made up only AFTER the Prussian blue problem was pointed out. First of all, Zyklon pellets do not release all the gas immediately.
You are right that release wasn’t instantaneous, but that doesn't contradict the short exposure hypothesis. The victims died quickly, and the gas was then ventilated which is consistent with forensic toxicology.
To deal with this problem, what they claim is that there were these special columns ("Kula columns") that they used to remove the pellets in the middle of the gassing. Never mind for a minute how idiotic this procedure would be (in the US gas chambers, they dissolve the HCN tablets in acid to accelerate the release and use ammonia to stop the reaction). There's no actual, hard evidence that these columns existed. It's based on testimonies. I.e., STORIES. You won't find any mention of these Kula columns in older histories.
The Kula columns were described by multiple witnesses independently, including Michał Kula, a Polish prisoner and technician who claimed to have built them. You are right that there are no surviving physical examples but most of the crematoria were destroyed by the SS in 1944 to hide evidence. Absence of surviving hardware does not negate multiple independent testimonies.
Most importantly, the Kula column concept wasn't invented after the "Prussian Blue problem." The term “Kula column” and the testimony about their function appear in Soviet trials, Polish inquiries, and early survivor accounts in the 1940s and 1950. This was decades before Leuchter or Rudolf.
The other problem here is that the ventilation would not have been anywhere near as efficient as you are claiming even with these mythical Kula columns. The "gas chambers" in fact had ventilation systems that were absolutely typical for a morgue (which is what those rooms actually were).
You are correct that the original designation of the rooms was as morgues (Leichenkeller), but this isn't debated. It is well documented that morgues were converted into gas chambers. I can look this one up too if you don't believe it.
Moreover, even if we are generous and assume the rooms were ventilated within an hour or two, it's still not a given that this would be insufficient for Prussian blue to form.
You are right that ventilation time alone does not determine whether Prussian Blue will form but that's why it is only one of several factors considered in forensic and chemical analyses. The absence of Prussian Blue in the gas chambers is not due to ventilation time alone, it's due to the total chemical environment, including pH, iron availability, humidity, frequency of exposure, and duration.
Here's a simple analogy. Just because a sponge didn’t get soaked doesn’t mean that it wasn’t exposed to water. Maybe the water was acidic, maybe the sponge was sealed, or maybe it wasn’t there long enough.
I disagree with your claim that Prussian blue is "not a reliable marker for cyanide exposure." If it is present, this is an extremely reliable indicator. For a negative result, the matter is a bit more complicated, but if there were present some condition that inhibited the formation of PB, then you need to say what those conditions were. You threw out failed arguments to explain this.
I think you misinterpreted that point. Prussian Blue will only be present after cyanide exposure but it will not always be there. So if you don't detect Prussian Blue, it doesn't prove that there was no cyanide exposure. It doesn't prove either way.