蚀刻剂中盐酸含量的测定 应用资料

智能文字提取功能测试中

蚀刻剂中盐酸含量的测定 应用资料稀释后的样品用1mol/L氢氧化钠进行滴定。终点是滴定曲线上的最大拐点。盐酸浓度由氢氧化钠溶液的滴定体积计算得出。KGMKYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIQ-96111enL Application Memo Hydrochloric Acid in Etchant Industry Inorganic chemical i ndustry Instrument Automatic potentiometric titrator Measurement method GB/T 622 1.Overview The diluted sample is titrated with the 1mol/L sodium hydroxide. The endpoint i s the maximum inflexion on t he titration curve. The hydrochloric acid concentration i s calculated from the titration volume of the sodium hydroxide solution. 2.Apparatus Main unit Automatic potentiometric titrator (preamplifier STD) Electrode pH glass electrode Ceramic reference electrode Temperature compensation electrode 3.Reagents Titrant 1mol/L sodium hydroxide solution Sample Titer Concentration(g) (mL) (%) 1 3.0007 19.0306 23.148 3.0190 19.0485 23.030 2 3 3.0077 19.0506 23.119 AverageSD RSD(%) 23.099 0.062 0.27 -Titration curve- Please feel free to contact us for any further i nformation. Kyoto Electronics Manufacturing Co.， Ltd. Overseas Sales & Marketing Sect.