摘要
文章采用氢氧化钠碱熔试样，经硫酸中和后，在1＋1盐酸介质中蒸馏分离锗，使大部分干扰元素经蒸馏分离，并在1＋1盐酸介质中用碘酸钾容量法滴定锗。该法滴定终点明显，准确率高。标准回收率为95．52％～105．78％，变异系数为3．18％～4．42％。适用于锗渣中高含量的锗的测定分析。
The sample was dissolved by Sodium Hydroxide, and then heutralized by Sulfuric Acid. Finally it was distilled to separate Gemenium from the co-exist elements in Hydrochloric Acid （1 ＋ 1） Medium. In Hydrochloric Acid （1 ＋ 1） Medium, Gemenium was titrated by potassiumiodate standard solution. This method has a distinct titration end point and high accuracy. The standard recovery is in the range of 95.52% - 105.78%. The relative standard deviation RSD） is less than 4.42%. It can be used to determine the high Gemenium content in Gemenium slag.
出处
《湖南有色金属》
CAS
2006年第5期56-58,共3页
Hunan Nonferrous Metals
关键词
锗渣
锗
碱熔
碘酸钾
Gemenium slag
Gemenium
potassium iodate
Sodium Hydroxide
