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The rate of gel-growth for spherical ionotropic metal alginate gel droplets has been studied. Experimental observations have shown that the relaxation time of the metal alginate ionotropic gel complexes of the droplet shapes decreased in the order Hg > Cd > Sn > Pb-alginates, whereas the velocity of sinking under gravitational acceleration decreases in the same order. The factors which affect...
The kinetics of gelation between Zn(II), Cd(II) and Pb(II) metal ion electrolytes and sodium alginate polysaccharide sol have been studied complexometrically at temperatures between 35 and 65°C. Using a large excess of alginate sol concentration, the pseudo first-order plots of exchange between Na+ counter ions of the macromolecular chains of alginate sol and the metal ions give sigmoidal curves with...
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