Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

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), Journal Name: Colloid J. USSR (Engl. Transl.); (United States) Vol. 49:6; ISSN COJOA
Country of Publication:
United States
Language:
English