电镀溶液中氨基磺酸含量的测定 应用资料

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电镀溶液中氨基磺酸含量的测定 应用资料在样品中加入浓盐酸和水后，用0.1mol/L亚硝酸钠在低于15℃的温度下滴定，测定镀液中的氨基磺酸含量。终点是滴定曲线上的最大拐点。氨基磺酸的浓度是根据亚硝酸钠的滴定体积计算得出的。KGMKYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIO-93008enL Application Memo Sulfamic Acid in Plating Solution 1.Overview Sulfamic acid in plating solution is measured by titration with 0.1mol/L sodium nitrite at temperature less than 15°℃ after adding concentrated hydrochloric acid and water to the sample. The endpoint is the maximum inflexion on t he t i t ration curve. The sulfamic acid concentration is calculated from the titration volume of sodium nitrite. 2. Apparatus Main unit Automatic potentiometric titrator (preamplifier STD) Electrode Platinum electrode Ceramic reference electrode 3. Reagents Titrant 0.1mo1/L sodium nitrite (f=1.006)Solvent Pure water r ，，C Concentrated hydrochloric acid 4. Example Sample Titer Sulfamic acid (mL) (mL) (g/L) 1 20.0 3.8610 1.886 n4-1 1.00m —Titration curve- 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 电话： 021-54488867 电邮： kemu-kem@163.com 网址： http：//www.kem-china.com