Abstract
The adsorbability of ions by colloid particles and their influence on coagulation was investigated by Freundlich (1). He established the relation between the coagulating powers of oppositely charged ions and their adsorbabilities. According to him the phenomena of coagulation would be governed mainly by the preferential adsorption of the counter ions and neutralization of charge. He also studied the effect of electrolyte concentration on the electrokinetic potential of colloidal dispersions. It was observed, in general, that there was first of all an increase in the value of zeta potential which followed its fall to zero value on further addition of electrolyte. Hardy (2) suggested that on addition of electrolytes the charge on particles is reduced by the adsorption of oppositely charged ions and the stability of sol becomes least at isoelectric point.
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Singh, L.R., Bahadur, P., Lata, P. (1978). Electrolyte flocculation of oil-in-water emulsions stabilized by anionic detergents. In: Emulsions. Progress in Colloid and Polymer Science, vol 63. Steinkopff, Heidelberg. https://doi.org/10.1007/BFb0117156
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DOI: https://doi.org/10.1007/BFb0117156
Publisher Name: Steinkopff, Heidelberg
Print ISBN: 978-3-662-16093-0
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