| Pb、Bi连续测定综合实验设计 |
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| 引用本文： | 魏剑英,韩周祥.Pb、Bi连续测定综合实验设计[J].化学工程师,2006,20(6):34-36. |
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| 作者姓名： | 魏剑英 韩周祥 |
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| 作者单位： | 郑州轻工业学院,化工系,河南,郑州,450002;郑州轻工业学院,化工系,河南,郑州,450002 |
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| 摘 要： | 对Pb、Bi连续测定中的Pb、Bi废液采用Na2S沉淀,HNO3溶解后配制成分析溶液,将原来的分析实验设计成集回收和测定于一体的综合实验,使Pb、Bi溶液可以循环利用,解决了废液排放造成的Pb污染和试剂消耗,实现了化学实验的绿色化,达到了综合训练的目的。
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| 关 键 词： | 铅 铋 配位滴定 综合实验 |
| 文章编号： | 1002-1124（2006）06-0034-03 |
| 收稿时间： | 2006-03-05 |
| 修稿时间： | 2006年3月5日 |
Combined experiment design of the lead and bismuth determination in series |
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| WEI Jian-ying,HAN Zhou-xiang.Combined experiment design of the lead and bismuth determination in series[J].Chemical Engineer,2006,20(6):34-36. |
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| Authors: | WEI Jian-ying HAN Zhou-xiang |
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| Affiliation: | College of Mater. and Chem. Eng., Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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| Abstract: | The lead and bismuth of the waste analyzed sulution were recovered by sodium sulfide through the precipitation.The precipitation was disolved by nitric acid and then was used as a sample for the further analysis.The traditional analysis of lead and bismuth was modified to the combination experiment of the analysis and the waste recovery.The solution of lead and bismuth can be reused.The problems of lead pollution and chemicals cost were solved.The modified analysis was green and the student's comprehensive ability was trained. |
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| Keywords: | lead bismuth coordination titration combined experiment |
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