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化學(xué)配方數(shù)據(jù)庫(kù)
配方類型： DETERGENTS
配方說明： Boiler Scale Removal
配方組成：
配制方法： Where boiler scale is siliceous in character, ammonium bifluoride is used with inhibited hydrochloric acid for its removal. Two percent (2%) or less in 15% inhibited hydrochloric acid at elevated temperatures is left in contact with the scale long enough to loosen it so that it may be flushed from the tubes. In sugar refineries 0.3 to 0.5% Ammonium Bifluoride may be used in 3% hydrochloric acid.

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