碘化铅溶度积测定实验条件的探索

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英文篇名：Experimental Conditions for Determining Dissolution Product of Lead Iodide 作者：张歆皓 ; 张颖颖 ; 崔欢 英文作者：ZHANG Xin-Hao;ZHANG Ying-Ying;CUI Huan;Department of Chemical Engineering,Chifeng University; 关键词：离子交换法 ; 碘化铅溶度积 ; 硝酸 英文关键词：ion exchange;;solubility product constant of lead iodide;;HNO_3 中文刊名：FXJJ 英文刊名：Chinese Journal of Chemical Education 机构：赤峰学院化学化工学院; 出版日期：2019-05-18 出版单位：化学教育(中英文) 年：2019 期：v.40 基金：赤峰学院双改项目(JGXM201503);; 国家自然科学基金(50873020);; 内蒙古自治区自然科学基金重大项目(2011ZD02) 语种：中文; 页：FXJJ201910013 页数：6 CN：10 ISSN：10-1515/O6 分类号：49-54

摘要

离子交换法测定碘化铅溶度积是本科无机基础实验课中的一个重要实验。本实验通常时间较长,实验药品消耗偏多。对实验过程进行了改进,包括优化装柱方法,改变HNO_3的用量及浓度,改变饱和碘化铅溶液的体积及Pb~(2+)与阳离子树脂进行交换时的流速。实验结果表明,改进后的实验获得了较为准确的溶度积,而且减少了实验试剂的用量,同时也缩短了实验的时间。
        The determination of the solubility product of lead iodide by ion exchange method is an important experiment in inorganic foundation course. This experiment usually takes a long time, and the reagent consumption is relatively high. This paper is devoted to the exploration of the experimental process, including the optimization of the packing method, changing the amount and concentration of HNO_3, changing the volume of saturated lead iodide solution and the flow rate of Pb~(2+) exchanged with cationic resin. The experimental results show that the results obtained in this paper have a relatively accurate solubility product, and the amount of experimental reagent is reduced, the experimental time is also shortened.

引文

[1] 王建鸣.黄冈师范学院学报,2004,24(3):81-83
    [2] 俞云,蔡碧玉,郑礼华,等.龙岩学院学报,2013,31(2):14-16,29
    [3] 杨立新.大学化学,1996,11(5):35-38
    [4] 胡应喜.石油化工高等学校学报,1995,8(1):19-21
    [5] 华中师范大学,东北师范大学,陕西师范大学,等.分析化学.3版.北京:高等教育出版社,2001:6,79
    [6] 武汉大学,吉林大学,等.无机化学(上册).3版.北京:高等教育出版社,2010:9,494
    [7] 北京师范大学,东北师范大学,华中师范大学,等.无机化学实验.4版.北京:高等教育出版社,2014:7,143
    [8] 宋龄瑛,梁淑芬,蒋笃孝,等.广东化工,2006,33(11):22-25