Kinetics of H+/Me+ (Me = Na, K) ion exchange in polyantimonic acid

详细

The kinetics of ion exchange in polyantimonic acid (PAA) with the composition of Sb₂O₅ · 3.2H₂O are studied. It is shown that sodium and potassium ions replace mobile proton groups and are located in channels of the PAA crystal structure. Diffusion coefficients are calculated in the approximation of the spheric grain model on the basis of the ion exchange data.