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METHOD FOR QUANTITATIVELY ANALYZING ORGANIC ADDITIVE IN STAINLESS STEEL ACID-CLEANING LIQUID AND METHOD FOR ACID-CLEANING STAINLESS STEEL USING SAME
METHOD FOR QUANTITATIVELY ANALYZING ORGANIC ADDITIVE IN STAINLESS STEEL ACID-CLEANING LIQUID AND METHOD FOR ACID-CLEANING STAINLESS STEEL USING SAME
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机译:不锈钢酸洗液中有机添加剂的定量分析方法及相同方法的不锈钢酸洗方法
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摘要
PROBLEM TO BE SOLVED: To provide a method for quantitatively analyzing organic additives in a stainless steel acid-cleaning liquid for capable of speedily quantitatively analyzing an acid-cleaning accelerator containing an organic compound having mercapto groups and an organic compound having disulfide bonds added to an acid-cleaning liquid for stainless steel by a simple method and a method for acid-cleaning stainless steel using the same method. SOLUTION: An organic additive preferably containing an organic compound having mercapto groups and/or an organic compound having disulfide bonds in a non-oxidizing acid-cleaning liquid for stainless steel is oxidized with permanganic acid ions, and determination is performed on the basis of the amount of consumed permanganic acid ions. Or the above-mentioned organic additive is oxidized with nichrome acid ions, and determination is performed on the basis of the amount of generated Cr3+ in a method for quantitatively analyzing an organic additive in a stainless steel acid-cleaning liquid and a method for acid-cleaning stainless steel using the same method for quantitative analysis.
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