论文部分内容阅读
本文介绍了笔者对测定钨锑矿中铁的重铬酸钾容量法进行的改进,即消除锑干扰由用通硫化氢法改为锌置换法,并说明了这种改进的优点。
This article describes the author’s improvement of the potassium dichromate volumetric method for the determination of iron in tungsten-antimony ore, that is, eliminating the interference of antimony by changing the hydrogen sulfide method to the zinc substitution method and illustrates the advantages of this improvement.