电镀溶液中硼酸含量的测定 应用资料

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电镀溶液中硼酸含量的测定 应用资料向溶解甘露醇的温水中加入样品和纯水，并用氢氧化钠滴定至终点。终点是滴定曲线上的最大拐点。根据滴定体积计算硼酸浓度。KGM KYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIQ-98018enL Application Memo Boric Acid in Plating Solution IndustryInorganic chemical industryInstrumentAutomatic potentiometric titratorMeasurement methodAcid-base TitrationStandardsISO 6353-3， HB/Z 5089.6 1.Overview Add sample and pure water to the warm water dissolving Mannitol and titrate with sodiumhydroxide up to the endpoint. The endpoint is the maximum inflexion on the titration curve.The boric acid concentration is calculated from the titration volume. 2. Apparatus Main unit Automatic potentiometric titrator (preamplifier STD) Electrode pH glass electrode Ceramic reference electrode Temperature compensation electrode 3. Reagents Titrant 0.1 mo1/L sodium hydroxide Solvent Pure water Reagent Mannitol 4. Example plt Sample Titer Boric acid (mL) (mL) (g/L) 1 2.0 9.4847 29.31 2 2.0 9.5805 29.60 Average 29.46 12.0 -Titration curve一 Please feel free to contact us for any further information. Kyoto Electronics Manufacturing Co.， Ltd. Overseas Sales & Marketing Sect.