Geology topics

R.W. Potter

Publications and source records attributed to R.W. Potter.

4 recordsLinked to original sources

USGS2002

Solubility of NaCl in aqueous electrolyte solutions from 10 to 100°C

The solubilities of NaCl in aqueous KCl, MgCl2, CaCl2, and mixed CaCl2-KCl solutions have been determined from 10 to 100??C. The data were fit to an equation, and the equation was used to calculate values of the change in solubility of NaCl, ???[NaCl]/???T. These values are required for calculations of the rate of migration of fluids in a thermal gradient in rock salt. The data obtained here indicate that the values of ???[NaCl]/???T are 36-73% greater for solutions containing divalent ions than for the NaCl-H2O system.

Journal of Chemical and Engineering Data↗

USGS2002

Solubility of some alkali and alkaline earth chlorides in water at moderate temperatures

Solubilities for the binary systems, salt-H2O, of the chlorides of lithium, rubidium, cesium, magnesium, calcium, strontium, and barium from near 0??C to the saturated boiling point are reported. The experimental data and coefficients of an equation for a smoothed curve describing each system are listed in the tables. The data are improvements on those previously reported in the literature, having a precision on the average of ??0.09%.

Journal of Chemical and Engineering Data↗

USGS1982

The densities of halite-saturated WIPP-A and NBT-6 brines and their NaCl contents in weight percent, molal, and molar units from 20 to 100 degrees C

A series of density measurements has been performed at 30?, 50?, 70?, and 90?C for halite-undersaturated WIPP-A and NBT-6 brines with various NaCl contents approaching saturation. The densities of halite-saturated WIPP-A and NBT-6 brines were obtained by extrapolating these measured densities to halite saturation points. The maximum difference between the densities obtained in this Fashion and those calculated from the model of Potter and Haas is 0.015 g/cm3. The NaCl contents in halite-saturated WIPP-A and NBT-6 brines are reported in wt %, molal, and molar units from 20? to 100?C.

Open-File Report↗

USGS1976

An investigation of the critical liquid-vapor properties of dilute KCl solutions

The three parameters that define the critical point, temperature, pressure, and volume have been experimentally determined by means of filling studies in a platinum-lined system for five KCl solutions ranging from 0.006 to 0.568 m . The platinum-lined vessels were used to overcome the problems with corrosion experienced by earlier workers. The critical temperature ( t c ), pressure ( P c ), and volume ( V c ) were found to fit the equations t c = 374.14   +   16.602 m   +   41.740 m  ± 0.5 ∘ C P c = 220.9   +   135.164 m  +   41.173 m 2   ±   0.5 b a r s V c = 3.155   −   1.373 m   +   0.507 m  ±   0.008 c m 3 − g − 1 "> t c = 374.14 + 16.602 m −−√ + 41.740 m ± 0.5 ∘ C P c = 220.9 + 135.164 m + 41.173 m 2 ± 0.5 b a r s V c = 3.155 − 1.373 m −−√ + 0.507 m ± 0.008 c m 3 − g − 1 tc=374.14 + 16.602m + 41.740m ±0.5∘CPc=220.9 + 135.164m + 41.173m2 ± 0.5barsVc=3.155 − 1.373m + 0.507m ± 0.008cm3−g−1 from infinite dilution to 1.0 m .

Journal of Solution Chemistry↗