Originally Posted by Naplm00
I've never rinsed previously using ospho, thought it was just water and phosphoric acid?
mostly that. there is also a detergent in there, which you can see in action if you put zinc in there.
the zinc will react with the phosphoric acid to form zinc phosphate and hydrogen gas. the evolved hydrogen will create a fine foamy layer, which is the detergent forming bubbles.
Either way, you gotta wash it off, acid and all. Unless you don't care