| 硫脲的示波滴定 |
| |
| 引用本文： | 王伟.硫脲的示波滴定[J].盐城工学院学报(自然科学版),2002,15(1):56-57,71. |
| |
| 作者姓名： | 王伟 |
| |
| 作者单位： | 盐城工学院,化学工程系,江苏,盐城,224003 |
| |
| 摘 要： | 研究了硫脲的示波滴定方法，利用硫脲与已知过量的AgNO3定量生成沉淀的反应原理，再加入已知过量的Na-TPB沉淀Ag^ ，然后以氯化四乙基铵返滴定。方法简便、快速，终点直观，不受溶液的颜色及沉淀存在的影响。方法标准加入回收率在99．0％－100．5％。相对标准偏差＜0．5％。
|
| 关 键 词： | 示波滴定法 硫脲 四苯硼钠 硝酸银 氯化四乙基铵 含量测定 |
| 文章编号： | 1671-5322(2002)01-0056-02 |
Determination of Thiourea by Oscillographic Titration |
| |
| WANG Wei.Determination of Thiourea by Oscillographic Titration[J].Journal of Yancheng Institute of Technology(Natural Science Edition),2002,15(1):56-57,71. |
| |
| Authors: | WANG Wei |
| |
| Institution: | Department of Chemical Engineering of Yancheng Institute of Technology,Jiangsu Yancheng 224003,China |
| |
| Abstract: | The method for indirect determination of thiourea by ocsillographic titration. In the pH 10.0, the thiourea was completely precipitated by excessive silver nitrate, and the excessive silver nitrate was completely precipitated by sodium tetraphenylborate, the sodium tetraphenylborate was detected by ocsillographic titration for calculating the content of thiourea. The method was applied to determination of thiourea with precision of RSD 0.5%. |
| |
| Keywords: | oscillographic titration ?thiourea ?sodium tetraphenylborate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《盐城工学院学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《盐城工学院学报(自然科学版)》下载免费的PDF全文 |
