My point is you are making very basic mistakes with chemistry as a foundation.
This isn't a discussion of chemistry. It's merely a fact that Zyklon B must be used with specialized equipment (involving being heated) to be effective. Short of that, the pebbles it's contain in will not release the poison gas. This is by design, so that its users can do so with safety. We can argue about what the definition of high is, but heating is required.
But assuming, arguendo, that I were to concede your point, even the Auschwitz curator admited that the gas chamber there is a post war reconstruction of a German bomb shelter. It was transformed to look, he conceded, to the average uncritical tourist, like a gas chamber, but could not actually function as one. Not even close.
