Abstract
This paper includes the results of investigations of the zeta-potential changes of emulsion droplets of hydrocarbons (n-alkanes containing 9 to 16 carbon atoms in hydrocarbon chains) depending on the pH of aqueous solutions. The zeta potential of emulsion droplets of hydrocarbons was determined from measurements of electrophoretic velocity observed on a TV monitor screen. The results indicated that the zeta potential of emulsion droplets is a function of pH and does not depend on the chain-length of the investigated aliphatic hydrocarbons. A distinct correlation between the values of the zeta potential and the separation velocity of the amount of the hydrocarbon liquid phase on the aqueous solution surface was observed. The effectiveness of the process gradually increases together with the linear drop to zero zeta potential in the acid solutions.
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