A question to you all.
Since I work in a garage, and since even in Victoria it can get cold
in winter, about 4deg C, and since I have only two power points;
Sparex, which requires heat, is useless for dissolving copper oxides.
So I use battery acid, or sulphuric acid. And in a pinch, I’ll use
hydrochloric acid. Both work really well to remove fire scale from
copper. Any reason why I should stop?
Sulphuric acid in the form of battery acid is pretty cheap too.
I do not use nitric acid. It can be very dangerous because it is such
a potent oxidizer. Where a face mask if you must use, at least that is
And thanks Peter Rowe for filling me in on the mercury