The time variation in emf caused by pressure differences has been used to find transference coefficients of water as well as water permeabilities in ion exchange membranes. Previous experimental methods have been corrected and facilitated. The cation exchange membrane CR61 AZL 386 was investigated. Equilibrium solutions contained 10-4 kmol_m-3 < CKC~ < 10-1 kmol_m-3, or constant concentration o...

  Adsorption of cations Al, Zn, Fe, Cr and Pb from aqueous solution of hydrogen peroxide using IR-120 cation-exchange resin was studied. The removal percentage of the cations was examined by varying experimental conditions (such as pH of the hydrogen peroxide solution, temperature, contact time and dosage of adsorbent) i...

     The aim of the present research was to study the effects of weak cation exchange resins, polacrilex with exchangeable H+ and polacrillin potassium and strong cation exchange resin sodium polystyrene sulfonate on water uptake behavior of ranitidine hydrochloride. Drug resin complexes (DRC) were prepared and evaluated for the percentage of moisture gain when placed in a humidity c...

We report here fast A-site cation cross-exchange between APbX 3 perovskite nanocrystals (NCs) made of different A-cations (Cs (Cesium), FA (formamidinium), and MA (methylammonium)) at room temperature. Surprisingly, the A-cation proceeds as halide (X=Cl, Br, or I) exchange with help free A-oleate complexes present in freshly prepared colloidal NC solutions. It enabled preparation double (MACs, ...