| 络合滴定法连续测定钨镍铜合金中的镍和铜 |
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| 引用本文： | 吴岩青 郭润秀. 络合滴定法连续测定钨镍铜合金中的镍和铜[J]. 理化检验(化学分册), 1998, 34(11): 494-495 |
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| 作者姓名： | 吴岩青 郭润秀 |
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| 作者单位： | 西安华山机械厂理化中心，西安秦川机械厂计量处 710043 |
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| 摘 要： | 拟定了用络合滴定法连续测定钨镍铜合金中镍和铜的方法.在两份试液中,一份控制pH≈8,以疏代硫酸钠掩蔽Cu(Ⅱ),氟离子掩蔽W(Ⅵ),用EDTA标准溶液直接滴定Ni(Ⅱ),求得镍含量.另一份在过量氨水介质中,用EDTA标准溶液滴定Ni(Ⅱ)、Cu(Ⅱ),求得镍-铜合量,铜含量由差减法求得.指示剂为紫脲酸铵.方法简便、快速,结果准确可靠.
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| 关 键 词： | 钨镍铜合金 络合滴定 铜镍 |
CONSECUTIVE DETERMINATION OF COPPER AND NICKEL IN W-Ni-Cu ALLOY BY COMPLEXOMETRIC TITRATION |
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| Wu YangqingXian Huashan Machinery Plant,Xian Guo RunxiuXian Qingchung Machinery Plant. CONSECUTIVE DETERMINATION OF COPPER AND NICKEL IN W-Ni-Cu ALLOY BY COMPLEXOMETRIC TITRATION[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 1998, 34(11): 494-495 |
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| Authors: | Wu YangqingXian Huashan Machinery Plant Xian Guo RunxiuXian Qingchung Machinery Plant |
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| Affiliation: | Wu YangqingXian Huashan Machinery Plant,Xian 710043 Guo RunxiuXian Qingchung Machinery Plant |
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| Abstract: | |
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| Keywords: | W-Ni-Cu alloy Complexometric titration Copper Nickel |
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