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化学学报
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化学学报 ›› 1955, Vol. 21 ›› Issue (4): 412-414. 上一篇    

研究简报

研究简报无机分析用有机试剂的分析功能团的研究I.——新撒尔瓦散用作银试剂

王夔   

  1. 北京医学院化学教研组
  • 投稿日期:1955-09-08 发布日期:2013-06-04

STUDIES ON ANALYTICAL FUNCTIONAL GROUPS OF ORGANIC REAGENTS USED IN INORGANIC ANALYSIS Ⅰ.NEOSALVARSAN USED AS A SILVER REAGENT

WANG KUEI   

  1. Chemical Laboratory, Peking Medical college
  • Received:1955-09-08 Published:2013-06-04

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(1)新撒爾瓦散可以用作銀離子試劑,與銀離子生成棕色絡合物沉澱.Ⅰ.L.2γC.L.1:25,000一般陽離子中只Cu++生成橙黃色沉澱,Fe+++生成紫色沉澱,Hg++生成少量棕綠色沉澱,Hg2++還原成黑色沉澱.(2)由Job變更濃度法製得光吸收一組成曲線,最高點相當於銀離子與新撒爾瓦散之此為2:3.(3)茲建議偶砷基為銀離子的分析功能團.

Neosalvarsan is proposed as a reagent for silver ions.It forms a brown insoluble complex.I.L.2γ; C.L.25,000.By Jab's continuous variation method,light absorption-composition curves were obtained.The maximum corresponds to silver:neosalvarsan=2:3.It is proposed that the-As=As-group may be considered as an analytical functional group for silver ions.