检测脂肪和油类酸值和游离脂肪酸

Determination of the exact concentration of the KOH titrant We recommend ready to use KOH titrants. The exact concentration of the KOH 0.1 mol/l can be determined using the titrimetric standard potassium hydrogen phthalate. In a 150 mL beaker, 0.2 g of the standard are weighed accurately and dissolved in 80 mL of dist. water with stirring. It is titrated with the 0.1 mol/l KOH solution. Repeat the standardization two times. The average value is stored automatically in the exchangeable unit.