Concentrated aqueous sodium chloride solution in clays at thermodynamic conditions of hydraulic fracturing: Insight from molecular dynamics simulations

2018 ◽  
Vol 148 (22) ◽  
pp. 222806 ◽  
Author(s):  
Martin Svoboda ◽  
Martin Lísal
Keyword(s):  
Molecular Dynamics ◽  
Sodium Chloride ◽  
Hydraulic Fracturing ◽  
Molecular Dynamics Simulations ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Aqueous Sodium Chloride Solution ◽  
Aqueous Sodium ◽  
Thermodynamic Conditions ◽  
Dynamics Simulations

Molecular structure and dynamics of an aqueous sodium chloride solution in nano-pores between portlandite surfaces: a molecular dynamics study

2016 ◽  
Vol 18 (3) ◽  
pp. 2059-2069 ◽  
Author(s):  
Hou Dongshuai ◽  
Lu Zeyu ◽  
Zhang Peng ◽  
Ding Qingjun
Keyword(s):  
Molecular Structure ◽  
Molecular Dynamics ◽  
Sodium Chloride ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Water Molecules ◽  
Aqueous Sodium Chloride Solution ◽  
Aqueous Sodium ◽  
Structure And Dynamics

Structures of water molecules and ions in the vicinity of the surface of portlandite.

DETERMINATION OF TRACE AMOUNTS OF SILVER IN GALENA ORES

1960 ◽  
Vol 38 (9) ◽  
pp. 1488-1494 ◽  
Author(s):  
E. J. Bounsall ◽  
W. A. E. McBryde
Keyword(s):  
Aqueous Solution ◽  
Nitric Acid ◽  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Silver Content ◽  
Aqueous Sodium Chloride Solution ◽  
Aqueous Sodium

An analytical method is described for the determination of microgram amounts of silver in galena ores, based on the "reversion" of silver dithizonate. Silver is separated from relatively large amounts of lead by extraction as dithizonate into chloroform from an aqueous 1:99 nitric acid solution. Separation from mercury, which is also extracted under these conditions and would, if present, interfere in the analysis, is achieved by reverting the dithizonate solution with a 5% aqueous sodium chloride solution which is also 0.015 molar in hydrochloric acid. Following dilution of this aqueous solution and adjustment of pH, silver is again extracted into chloroform as the dithizonate, and determined absorptiometrically. Analyses of a number of galena ore samples showed a precision of within 3% for a silver content ranging from 0.03 to 0.4%.Some other methods for isolating silver from these samples, which were tried but found unsatisfactory, are discussed.

Sign in / Sign up

Export Citation Format

Share Document