Ion-exchange resin

Electrical conductivity of flexible strongly acidic resin loaded with Cr (III) was investigated with an impedance spectroscopy method. The purpose of the work was to estimate the influence of hydrostatic pressure drop on the conductivity of the ion-exchanger bed, which had been compacted previously.

The high acidity of passion fruit limits its addition in food preparation and gives poor aroma and flavour products. The reduction of the acidity of the fruit juice can avoid this problem. Various methods such as calcium precipitation, ion-exchange resins and electrodialysis (ED) with homopolar and