碘酸钾滴定法测定ITO粉末材料中的锡  

Determination of Tin in ITO Powder Material by Potassium Iodate Titration

作　　者：李宏萍 刘文斌 符泽卫 许金泉 刘恒宇 LI Hongping;LIU Wenbin;FU Zewei;XU Jinquan;LIU Hengyu(R&D Center of Yunnan Tin Group(Holding)Co.,Ltd.,Kunming,Yunnan 650106,China)

机构地区：[1]云南锡业集团(控股)有限责任公司研发中心,昆明650106

出　　处：《中国无机分析化学》2021年第1期64-67,共4页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：建立了以锌粉-氢氧化钠熔融样品,盐酸浸取,用盖氏漏斗作为还原装置,铁粉和铝粒将锡还原,碘酸钾滴定法测定ITO粉末材料中锡的分析方法。方法测定结果稳定,精密度好,相对标准偏差为0.42%~0.67%,加标回收率在99.8%~101%,能够满足ITO粉末中锡的测定要求。An analytical method for determination of tin in ITO powder materials by potassium iodate titration was established,in which sample was molten by zinc powder-sodium hydroxide,leached by hydrochloric acid,reduced tin by iron powder and aluminum particles with a Geh funnel as a reduction device.The method has stable measurement results and good precision.The relative standard deviation is 0.42%to 0.67%,and the recovery is between 99.8%and 101%,which can meet the requirements for the determination of tin in ITO powder.

关 键 词：锌粉 氢氧化钠 ITO粉 锡 碘酸钾滴定 

分 类 号：O655.2[理学—分析化学]