| 铜-锌合金镀液中锌的分析方法 |
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| 引用本文： | 郭崇武. 铜-锌合金镀液中锌的分析方法[J]. 电镀与精饰, 2011, 33(7): 44-46 |
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| 作者姓名： | 郭崇武 |
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| 作者单位： | 广州超邦化工有限公司,广东广州,510460 |
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| 摘 要： | 用铬黑T作指示剂分析氰化物镀铜-锌合金镀液中的锌,在传统的测定方法中,需要使用剧毒氰化物和抗坏血酸抑制Cu2+离子的生成.为了消除氰化物的污染,研究了用三乙醇胺取代氰化钾的方法,三乙醇胺与Cu+离子生成稳定的络合物,在抗坏血酸存在的条件下,Cu+离子不能转变为Cu2+离子.测定时加甲醛破坏游离氰化钠,以铬黑T作指示剂,...
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| 关 键 词： | 铜锌合金镀液 锌 三乙醇胺 氰化钾 |
Analysis Method of Zinc in Cu-Zn Alloy Plating Bath |
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| GUO Chong-wu. Analysis Method of Zinc in Cu-Zn Alloy Plating Bath[J]. Plating & Finishing, 2011, 33(7): 44-46 |
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| Authors: | GUO Chong-wu |
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| Affiliation: | GUO Chong-wu (Guangzhou Ultra Union Chemicals Ltd,Guangzhou 510460,China) |
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| Abstract: | During the conventional zinc element determinations in cyanide Cu-Zn alloy plating bath,eriochrome black T was used as an indicator,and virulent cyanide and L-ascorbic acid were employed to inhibit the formation of Cu2+ ions.In order to eliminate the pollution of cyanide,a method substituting triethanolamine for potassium cyanide was studied.Triethanol-amine could form a stable complex with Cu+ ions.With the presence of L-ascorbic acid,Cu+ ions could not be changed to Cu2+ ions.In the analysis process,zinc ... |
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| Keywords: | Cu-Zn alloy plating solution zinc triethanolamine potassium cyanide |
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