硝酸含量的测定 应用资料

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硝酸含量的测定 应用资料称取一定量的试样，用氢氧化钠标准滴定溶液滴定，根据氢氧化钠标准滴定溶液的消耗量计算硝酸的含量。KGM KYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIQ-97044enL Application MemoQuantification of Nitric Acid Industry Inorganic chemical industryInstrument Automatic potentiometric titratorMeasurement method Acid-base titrationStandards GB/T 337.2 1.Overview Nitric acid is measured by titration of a diluted sample with 1mol/L sodium hydroxide up tothe endpoint， which is the maximum inflexion on the titration curve. The concentration of nitric acid is calculated from the titration volume of sodium hydroxide. 2. Apparatus Main unit Automatic potentiometric titrator (preamplifier STD) Electrode pH glass electrode Ceramic reference electrode Temperature compensation electrode 3.Reagents Titrant 1 mo1/L sodium hydroxide Solvent Pure water 4. Example Sample Titer Nitric acid (g) (mL) (%) 1 0.5388 5.8240 68.10 2 0.5304 5.7286 68.04 3 0.5331 5.7506 67.96 Average 68.03 SD 0.07 RSD(%) 0.1 Please feel free to contact us for any further information. 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室电话：021-54488867 电邮： kemu-kem@163.com网址： http：//www.kem-china.com