| BH-铝合金浸锌液中锌的化学分析 |
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| 引用本文： | 洪榕,苏洁雯,甘振杰.BH-铝合金浸锌液中锌的化学分析[J].电镀与涂饰,2006,25(9):56-57. |
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| 作者姓名： | 洪榕 苏洁雯 甘振杰 |
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| 作者单位： | 广州市二轻工业科学技术研究所,广东,广州,510170;广州市二轻工业科学技术研究所,广东,广州,510170;广州市二轻工业科学技术研究所,广东,广州,510170 |
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| 摘 要： | 在浸锌液的日常维护中,掌握浸锌液中锌的含量非常重要。采用络合滴定法测定浸锌液申的锌。选用络合能力很强的w=5％的NaCN溶液络合浸锌液中全部的金属离子,待全部金属离子完全络合后选用w=4％的释放剂甲醛释放锌离子,然后采用紫脲酸铵作为指示剂,用EDTA滴定。该法简单、方便．方便工厂对浸锌液的维护。
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| 关 键 词： | 铝合金 浸锌液 锌含量 络合剂 释放剂 紫脲酸铵 |
| 文章编号： | 1004-227X（2006）09-0056-02 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-05-08 |
Chemical analysis of zinc in zinc dipping solution for BH-aluminum alloy |
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| HONG Rong,SU Jie-wen,GAN Zhen-jie.Chemical analysis of zinc in zinc dipping solution for BH-aluminum alloy[J].Electroplating & Finishing,2006,25(9):56-57. |
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| Authors: | HONG Rong SU Jie-wen GAN Zhen-jie |
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| Affiliation: | Guangzhou Etsing Plating Research Institute, Guangzhou 510170, China |
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| Abstract: | It' s very important to know zinc content in zinc dipping solution during its everyday maintenance. The zinc content in zinc dipping solution was determined by comple xometry. A strong complexing agent NaCN with 5% of NaCN mass fraction was used to complex all metal ions in the solution; After all metal ions were complexed completely, zinc ion was released with methanal (4% ) as releaser. The solution was then titrated with EDTA using murexide as an indicator. The method is simple, convenient, which is suitable for factory to maintain zinc dipping solution. |
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| Keywords: | aluminum alloy zinc dipping solution zinc content complexing agent releaser murexide |
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