| 重铬酸钾容量法测定铁中SnCl2加入超量的处理方法 |
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| 引用本文： | 李军,董小平.重铬酸钾容量法测定铁中SnCl2加入超量的处理方法[J].安徽地质,2001,11(1):71-73. |
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| 作者姓名： | 李军 董小平 |
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| 作者单位： | 安徽省地质实验研究所,安徽,合肥,230001 |
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| 摘 要： | 重铬酸钾容量法测铁中,二氯化锡超量产生黑色汞沉淀,严重影响测定。利用空气氧化作用,无须添加任何试剂,在8-12min内解除汞的影响,较“弃之重来”的传统做法省时省力,用于铁矿样测定获满意结果,
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| 关 键 词： | 二氧化锡：空气氧化作用 除汞 摇动 |
| 文章编号： | 1005-6157(2001)01-0071-03 |
| 修稿时间： | 2000年6月5日 |
A TREATMENT OF EXCESS TIN CHLORIDE ADDITION IN THE DETERMINATION OF IRON BY USING POTASSIUM DICHROMATE VOLUMETRIC ANALYSIS METHOD |
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| LI Jun,DONG Xiao-ping.A TREATMENT OF EXCESS TIN CHLORIDE ADDITION IN THE DETERMINATION OF IRON BY USING POTASSIUM DICHROMATE VOLUMETRIC ANALYSIS METHOD[J].Geology of Anhui,2001,11(1):71-73. |
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| Authors: | LI Jun DONG Xiao-ping |
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| Abstract: | The excess tin chloride addition produces black mercury precipitation and is about to seriously affect the determination of iron by using potassium chromate volumetric analysis method. Air oxidation we use without any other reagent is able to resolve the effect of mercury in the range of 8 to 12 minutes. This treatment saves more time and effort than the traditional doing "throw it away and try again". It is proved satisfactory in the assay of iron ore sample. |
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| Keywords: | tin chloride air oxidation mercury removal shaking |
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