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Title: Effect of pH on the electrokinetic properties of hydrophilic quartz and quartz made hydrophobic with petroleum

Journal Article · · Colloid J. USSR (Engl. Transl.); (United States)
OSTI ID:6382567

A study was made of the electrokinetic properties of quartz sand having a hydrophilic surface and a surface made hydrophobic by petroleum. The electrokinetic or zeta potential was calculated from the Helmholtz-Smoluchowski equation. It was shown that the effect of the pH on the wetting contact angle and on the zeta potential of quartz with a gel layer is determined by the surface area and not by the electrokinetic charge of the quartz. If the surface charge of quartz having a gel layer due to hydrophobization by petroleum decreases, the decrease is insignificant and the effect of the pH on the wetting by water should persist.

Research Organization:
Institute of Petroleum Chemistry, Tomsk (USSR)
OSTI ID:
6382567
Journal Information:
Colloid J. USSR (Engl. Transl.); (United States), Vol. 49:6; Other Information: Translated from Kolloidn. Zh.; 49: No. 6, 1184-1186(Nov-Dec 1987)
Country of Publication:
United States
Language:
English