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Mutual diffusion of sodium hyaluranate in aqueous solutions
Veríssimo, Luís M. P.; Valada, Teresa I. C.; Sobral, Abilio J. F. N.; Azevedo, Eduarda E. F. G.; Azevedo, Maria L. G.; Ribeiro, Ana C. F.The Taylor dispersion technique has been used for measuring mutual diffusion coefficients of sodium hyaluronate in aqueous solutions at T = 298.15 K, and concentrations ranging from (0.00 to 0.50) g · dm−3. The results are interpreted on the basis of Nernst, and Onsager and Fuoss theoretical equations. From the diffusion coefficient at infinitesimal concentration, the limiting ionic conductivity and the tracer ...
Interaction between lactose and cadmium chloride in aqueous solutions as seen b...
Verissimo, Luis M. P.; Gomes, Joselaine C. S.; Romero, Carmen; Esteso, Miguel A.; Sobral, Abilio J. F. N.; Ribeiro, Ana C. F.Diffusion coefficients of an aqueous system containing cadmium chloride 0.100 mol · dm−3 and lactose at different concentrations at 25 °C have been measured, using a conductimetric cell and an automatic apparatus to follow diffusion. The cell relies on an open-ended capillary method and a conductimetric technique is used to follow the diffusion process by measuring the resistance of a solution inside the capill...
Diffusion coefficients in aqueous solutions of potassium chloride at high and l...
Lobo, Victor M. M.; Ribeiro, Ana C. F.; Verissimo, Luis M. P.Differential diffusion coefficients of potassium chloride in water at 298.15 K, and at concentrations from 0.001 M to 1 M, have been measured using a conductimetric cell and an automatic apparatus to follow diffusion. The results are discussed on the basis of the Robinson and Stokes, Onsager-Fuoss and Pikal models. The cell uses an open-ended capillary method and a conductimetric technique is used to follow the...
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