| 铅锶共沉淀络合滴定法测定铜合金中的铅 |
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| 引用本文： | 万里,王琳.铅锶共沉淀络合滴定法测定铜合金中的铅[J].高师理科学刊,2000,20(1):39-40. |
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| 作者姓名： | 万里 王琳 |
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| 作者单位： | [1]齐齐哈尔铁路车辆（集团）有限责任公司 [2]齐齐哈尔市第二医院 |
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| 摘 要： | 介绍了利用铅锶共沉一络合滴定法测定铜合金中的铅，试样以硝酸溶解，用硝酸锶共沉淀铅，将沉淀溶于热稀硝酸溶液中，在pH值为5．5的弱酸性介质中，以二甲酚橙为指示剂，EDTA滴定铅，结果满意．
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| 关 键 词： | 铅 锶 共沉淀 络合滴定 铜合金 |
Determination of the Lead Percentage in Copper Alloy by Lead and Strontium Co-deposition Chelatometric Titration |
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| Wan Li ,Wang Lin, Zhao Jie.Determination of the Lead Percentage in Copper Alloy by Lead and Strontium Co-deposition Chelatometric Titration[J].Journal of Science of Teachers＇College and University,2000,20(1):39-40. |
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| Authors: | Wan Li Wang Lin Zhao Jie |
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| Institution: | Wan Li ;Wang Lin; Zhao Jie(Qiqihar Railway Rolling Stock (Group) Co. Ltd) (Qiqihar Second Hospital) (Helongjiang Beidachang Co. Ltd) |
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| Abstract: | This paper report that lead percentage in copper alloy can be deterdmined by lead and stron tium co-deposition chelatometric titration. The sample is treated with nitrc acid and lead is co-deposition with strontium nitrate. Solve the deposition in hot dilute nitric acid solution. lead in solution is titrated with EDTA at pH 5. 5 with XO as inclicator. Results obtained by this method are proved reliable. |
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| Keywords: | Lead strontium co-deposition Chelatometric titration Sopper alloy |
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