【摘要】 本文根据过硫酸铵将矿样分解后的锰 (Ⅱ )氧化至锰 (Ⅶ ) ,高锰酸根与碘化钾反应析出碘 ,据此建立了碘 四氯化碳萃取光度法间接测定锰的方法。锰含量在 0 0 0 1～ 0 1mg·L- 1 之间 ,遵守比耳定律 ;对测定条件作了考察 ,通过方法的回收率试验以及与其他测定方法进行比较得到了满意的结果 ,回收率在 97%～ 10 3%之间。更多还原

【Abstract】 Ore samples were resolved by ammonium peroxodisulfate,and Mn(Ⅱ) contained in the samples was oxygenated into Mn(Ⅶ),which in turn reacted on KI,separating out I 2.According to the above experiment,manganese was then determined indirectly by the use of extraction photometric method of I 2～CCL 4 and satisfactory results have been obtained.When manganese content is between 0 001～0 1 mg·L -1 ,observe the law of ″bier″ and,compare with the experimenting method of the rate of reclamation and the other determination method,the excellent result has been got and its rate of reclamation is between 97%～103%.更多还原