碘酸钾容量法测定锗泥中的锗含量  

Determination of Germanium Content in Germanium Mud by Potassium Iodate Volumetric Method

作　　者：陈娟[1] 张灝宇 

机构地区：[1]昆明冶金研究院,云南昆明650031

出　　处：《云南冶金》2017年第5期62-65,共4页Yunnan Metallurgy

摘　　要：通过对锗泥中锗的测定的探索试验,简化了原有的碘酸钾容量法,采用硝酸-磷酸-高锰酸钾溶样后,不经蒸馏,直接用次亚磷酸钠加热还原,然后以淀粉为指示剂,用碘酸钾标准溶液滴定。本方法简便快捷,终点明显稳定,与仲裁法对比结果令人满意,适用于含杂质少的锗泥。The former potassium iodate volumetric method is simplified through the probe trial of the determination of germanium content in germanium mud, after sample dissolving by nitric acid - phosphoric acid - potassium permanganate and without distillation, the sodium hypophosphite is directly used for heating and reduction, after that, the starch is used as the indicator, titration can be done by using of potassium iodate standard solution. The method is sample and rapid, the end point is obvious and stable, comparing with the arbitration law, the results arc satisfactory, which is suitable for the germanium mud with fewer impurities.

关 键 词：碘酸钾 容量法 锗泥 

分 类 号：O655.2[理学—分析化学]