I bought some lye, potassium nitrate and distilled water to make some bluing salts.
I have done it before but the last time the salts turned into a brick and I had to neutralize them and put them in the trash.
It was not a lot of money but I would like to have used them more than a few times!
I am using a stainless steel stock pot with a lid.
This time I am thinking about using a 50 cal ammo can because they have an air tight seal.
I also plan to add more water after each use.
Does anyone have any idea why the salts solidified?