FIELD: chemical industry. SUBSTANCE: the solution for pickling coatings of titanium nitride applied to a stainless steel substrate comprises (wt %): 20-25 hydrofluoric acid; 20-25 nitric acid; 25-30 sulfuric acid; 25-30 hydrogen peroxide. EFFECT: improved properties of the solution. 1 tbl
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|---|---|---|---|
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|
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