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  4. METALS AND THEIR TREATMENT
化學(xué)配方數(shù)據(jù)庫(kù)
配方類型： METALS AND THEIR TREATMENT
配方說(shuō)明： Cleaning Stainless Steel
配方組成：
配制方法： The stain is removed by immersion for a few minutes in a solution of equal volumes of hydrochloric acid and water, at room temperature without any noticeable attack of the surface. It is suggested that, after the stain is removed, the fittings be passivated in the conventional nitric acid-dichromate bath.

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