摘要
在硫磷混合酸介质中、碘化钾过量的条件下,软锰矿中的二氧化锰与碘化钾作用定量析出碘,析出的碘可用硫代硫酸钠标准溶液滴定测定。测定结果与标准值完全一致,相对标准偏差<0.11%。该方法操作简便,快速,准确可靠,结果满意,适用于生产过程分析。
Under the conditions of mixed acid medium（sulfuric acid and phosphoric acid） and excess potassium iodide,manganese dioxide in pyrolusite reacted with potassium iodide,quantitative iodine was precipitated,and the precipitated iodine was titrated with the standard solution of sodium thiosulfate.The measured results were consistent with the standard value,and the relative standard deviation was less than 0.11%.This method is simple,rapid,accurate and reliable,with satisfactory results,suitable for the analysis of production process.
出处
《铀矿冶》
CAS
2012年第4期223-224,共2页
Uranium Mining and Metallurgy
关键词
碘量法
软锰矿
二氧化锰
测定
iodometric method
pyrolusite
manganese dioxide
determination
