化学学报 ›› 1959, Vol. 25 ›› Issue (2): 85-91. 上一篇    下一篇

论文

5-亚氨基噻唑啉-2-硫代甲酰胺用作分析试剂Ⅱ. ——5-亚氨基噻唑啉-2-硫代甲酰胺钯的组成及其在分析上的应用——光电悬浮滴定

田冰式, 王夔   

  1. 北京医学院化学教研组
  • 投稿日期:1957-10-22 发布日期:2013-06-03

5-IMINOTHIAZOLINE-2-THIOAMIDE USED AS ANALYTICAL REAGENT——Ⅱ THE PALLADOUS COMPOUNDS, THEIR COMPOSITIONS AND ANALYTICAL APPLICATIONS——HETEROMETRIC TITRATION

T'IEN PING-SHIH, WANG K'UEI   

  1. Department of Chemistry, Peking Medical College
  • Received:1957-10-22 Published:2013-06-03

一、在乙二胺四乙酸二钠盐掩蔽下可以避免许多阳离子对用5-亚氨基噻唑啉-2-硫代甲酰胺检定钯的干扰.二、本试剂与钯的生成物经各种方法研究证明有相当于试剂:钯=1:1及2:1的两种化合物生成.三、在乙醇溶液中, 用0.001—0.005M 试剂溶液可以在大量其他金属存在下用光电悬浮滴定法测定3.3×10-5M 到3.3×10-4M 溶液中的钯.误差约在0至±3.5%左右(视干扰离子而定).一次滴定需时二十分钟以内.

1.The interferences due to a number of cations can be avoided by masking with ethylenediaminetetraacetic acid.2.The compositions of the palladous compounds of this reagent were determined by several methods.The experimental result's sliow that two compounds corresponding to the ratio of reagent to Pd 1:1 and 2:1 are formed both in aqueous and alcoholic solutions.