| 碘酸钾滴定法测定铜阳极泥分银渣中的锡 |
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| 引用本文： | 冯振华,方迪.碘酸钾滴定法测定铜阳极泥分银渣中的锡[J].中国无机分析化学,2018,8(3):40-44. |
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| 作者姓名： | 冯振华 方迪 |
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| 作者单位： | 北矿检测技术有限公司;金属矿产资源评价与分析检测北京重点实验室 |
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| 摘 要： | 建立了碘酸钾滴定法测定铜阳极泥分银渣中锡的含量。通过硝酸溶解,过滤除铜,还原铁粉置换分离锑、铋、砷等元素,消除了铜阳极泥分银渣中的铜、锑、砷等杂质元素对锡测定的干扰。方法加标回收率在99.7%~100%。精密度实验结果表明,相对标准偏差(RSD,n=11)小于1.1%。操作过程简单,能满足生产的需要。
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| 关 键 词： | 铜阳极泥分银渣、锡、碘酸钾滴定法 |
| 收稿时间： | 2017/12/10 0:00:00 |
| 修稿时间： | 2018/1/1 0:00:00 |
Determination of tin in silver separating residue by potassium iodate. |
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| FENG zhenhua and Fangdi.Determination of tin in silver separating residue by potassium iodate.[J].Chinese Journal of Inorganic Analytical Chemistry,2018,8(3):40-44. |
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| Authors: | FENG zhenhua and Fangdi |
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| Institution: | Beijing General Research Institute of Mining and Metallurgy,Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: | A method for the determination of tin content in silver anode slime by potassium iodate titration is established in this paper. Through Filtering off copper by dissolving in nitric acid, replacing of antimony, bismuth, arsenic and other elements by iron powder reduction, the interference of the determination of copper, antimony, arsenic and other impurity elements in copper anode slime was eliminated. The recovery rate of the method was between 99.7% ~ 100.4%. The results of precision experiments showed that the relative standard deviation (RSD, n = 11) was less than 1.1%. The operation of this method is simple and can meet the needs of production. |
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