二氧化锰中含量(有效氧含量)的测定 应用资料

二氧化锰中含量(有效氧含量)的测定 应用资料在调整后的样品中加入水、盐酸和焦磷酸钠后，用0.01mol/L高锰酸钾滴定法测定总锰浓度。终点是滴定曲线上的最大拐点。总锰浓度由高锰酸钾的滴定体积计算得出。KGMKYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIQ-99360enL Application Memo Total Manganese in Manganese Dioxide 1.Overview After adding water， hydrochloric acid and sodium pyrophosphate to the adjusted sample， total manganese concentration is measured by titration with 0.01mol/L potassium permanganate.al1The endpoint is the maximum inf l exion on the titration curve. The total manganese concentration is calculated from the titration volume of potassium permanganate. 2. Apparatus Main unit Automatic potentiometric titrator (preampl i fier STD) Electrode Platinum electrode Ceramic reference electrode 3.Reagents Titrant 0.01mol/L(N/20) potassium permanganate Solvent Water Additive 5mol/L hydrochloric acid， Sodium pyrophosphate (Sodium diphosphate) 10hydrate 4. Example —Measurement results一 Sample size Titer Concentration (g) (mL) (%) 1 0.098418 27.0000 60.393 2 0.098418 27.0171 60.431 3 0.098418 27.0210 60.440 Average 60.421 SD 0.025 RSD(%) 0.041 —Titration curve厂 Please feel free to contact us for any further i nformation. Kyoto Electronics Manufacturing Co.， Ltd. Overseas Sales & Marketing Sect. 京都电子工业株式会社-可睦电子(上海)商贸有限公 司 上海市徐汇区宜山路333号1201室 电邮： kemu-kem@163.com