Acta Chimica Sinica ›› 1981, Vol. 39 ›› Issue (6): 571-574. Previous Articles     Next Articles

高含量钨的氧化还原滴定法

冯胜   

  1. 广东矿冶学院分析系 曲江县
  • 收稿日期:1979-09-05 出版日期:1981-11-15 发布日期:2013-06-03

A REDOX TITRATION METHOD FOR THE DETERMINATION OF HIGH CONTENTS OF TUNGSTEN IN THIOCYANATE MEDIUM

FENG SHENG   

  1. Department of Chemistry, Guangdong College of Mining and Metallurgy, Qujiang County
  • Received:1979-09-05 Online:1981-11-15 Published:2013-06-03

In the method desoribed,tho tungshsn in thiooyanate-hydrochlorio acid medium is first reduced.to pentavalent state by metallic lead or silver powder determined volumetrioally by titration with a standard ferrio solution.Since the tungsten thiooyanate oomplez is suffioiently stable in air,thismethod apears to give a good result and oan be applied to the analysis of tungsten ores.