树脂粉末中酸值的测定 应用资料

树脂粉末中酸值的测定 应用资料将样品溶解在二甲苯和丁醇(或二甲基甲酰胺)的混合物中后，用0.1mol/L氢氧化钾乙醇标准滴定溶液滴定树脂粉末中的酸值。酸值通过电位滴定法从氢氧化钾乙醇标准滴定溶液的终点滴定体积计算得到。京都電子工業株式会社KYOTO ELECTRONICSMANUFACTURING CO.，LTDTII-98004enL1/1京都電子工業株式会社KYOTO ELECTRONICSMANUFACTURING CO.，LTD Application Memo Acid Number of Resin Powder 1.Overview The acid number of resin powder is measured by titration with 0.1mol/L potassium hydroxide +ethanol after the sample is dissolved in mixture of xylene and butanol (or dimethylformamide).The acid number is calculated from the titration volume of potassium hydroxide + ethanol bypotentiometry up to the endpoint. 2. Apparatus Main unitAutomatic potentiometric titrator (preamplifier STD) Electrode pH glass electrode Double junction reference electrode Temperature compensation electrode 3. Reagents Titrant 0.1mo1/L potassium hydroxide + ethanol Solvent Xylene + butanol (or dimethylformamide) Sample Titer Acid number (g) (mL) (mg/g) 1 2.5252 3.7107 8.2452 2 2.5188 3.7163 8.2786 中 3 2.5261 3.7110 8.2429 Average 8.2556 SD 0.0200 RSD(%) 0.242 -Titration curve- 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)商贸有限公司电话：021-54488867 电邮： kemu-kem@163.com