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Chemistry / Re: What is saltpeter?
« on: 11/07/2006 10:24:21 »quote:
Originally posted by daveshorts
There was also a process which somehow involved oxidising the urea in urine to saltpeter. I am not sure of the exact process but it happens naturally in animal sheds as you can sometimes see the phosphorescent glow from the saltpeter in old animal sheds.
I belive that at one point there was alaw that said you had to collect all the urine made in your house and give it to special urine collectors who would then make saltpeter with it.