The above solutions are used forcleaning and scale removal in pickling of stainless steel.
Hot rolled sheetsare pickled for 10-20 minutes in 8% of fomulation (A)
Formulation A :
Sulfuric Acid = 11
Glacial Acetic Acid = 10
Silicon Aerosol = 6
Polyvinyl Alcohol ( PVA ) = 1
Water = 72
and 2% hydrochloric acid solution (
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