Streaming Potentials of Corundum in Aqueous Organic Electrolyte Solutions

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Abstract
The effect of certain 12‐carbon anionic and cationic surface‐active compounds on the zeta potential of corundum at different values has been evaluated from streaming potential measurements. These measurements, made under conditions of both positive and negative surface charge, indicate that long‐chained ions are adsorbed appreciably only when the solid and organic ions are oppositely charged. An adsorption mechanism involving electrostatic attraction and hydrocarbon chain association is discussed using the Stern model of the double layer.

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