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Originally posted by NIcon
reply to post by GenRadek
As the source of the iron oxide in the red chips is the red chips, not the building. Or is it being claimed it mixed into the chips during the collapse?
NIST did experiments with the steel beams, because they wanted to use the appearance of the paint as a measure for the temperature the steel beams had been exposed to. And let me be specific. When you heat this steel beam up 250 degrees Centigrade, it starts cracking. This is because the steel expands more than the paint. They get what they call mat cracks. And it keeps on cracking until the temperature is above 650 degrees, where it starts peeling off, forming scales. This continues to about 800 degrees, when this scaling becomes excessive. But it does not burn. So, the paint on the steel beams is stable beyond 800 degrees Centigrade. Now, the stuff we have found ignites at 430 degrees Centigrade. So, it is not the primer paint. So, what I can say is… Is this nano-thermite? Well, it quacks like a duck, it waggles like a duck, it looks like a duck, maybe it’s a duck? This is all we can say.
Here is why.
Originally posted by NIcon I wasn't sure why butcherguy wanted me to look at the steel in building as the source when Iron Oxide is found in the chip.