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@article{Vinogradov:2015:10.1002/2015GL064795,
author = {Vinogradov, J and Jackson, MD},
doi = {10.1002/2015GL064795},
journal = {Geophysical Research Letters},
pages = {6287--6294},
title = {Zeta potential in intact natural sandstones at elevated temperatures},
url = {http://dx.doi.org/10.1002/2015GL064795},
volume = {42},
year = {2015}
}
TY - JOUR
AB - We report measurements of the zeta potential of natural sandstones saturated with NaCl electrolytes of varying ionic strengths at temperatures up to 150°C. The zeta potential is always negative but decreases in magnitude with increasing temperature at low ionic strength (0.01 M) and is independent of temperature at high ionic strength (0.5 M). The pH also decreases with increasing temperature at low ionic strength but remains constant at high ionic strength. The temperature dependence of the zeta potential can be explained by the temperature dependence of the pH. Our findings are consistent with published models of the zeta potential, so long as the temperature dependence of the pH at low ionic strength is accounted for and can explain the hitherto contradictory results reported in previous studies.
AU - Vinogradov,J
AU - Jackson,MD
DO - 10.1002/2015GL064795
EP - 6294
PY - 2015///
SN - 1944-8007
SP - 6287
TI - Zeta potential in intact natural sandstones at elevated temperatures
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1002/2015GL064795
UR - http://hdl.handle.net/10044/1/25870
VL - 42
ER -