Apparent and Partial Molal Volumes of Sodium Chloride and Hydrochloric Acid in Mixed Solutions1

1940 ◽  
Vol 62 (5) ◽  
pp. 1128-1134 ◽  
Author(s):  
Henry E. Wirth
Keyword(s):  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Partial Molal Volumes ◽  
Molal Volumes

Apparent and partial molal volumes of sodium-kaolin and sodium chloride in kaolin suspensions

1968 ◽  
Vol 72 (7) ◽  
pp. 2358-2361 ◽  
Author(s):  
A. K. Helmy ◽  
F. F. Assaad ◽  
M. Naguib Hassan ◽  
H. Sadek
Keyword(s):  
Sodium Chloride ◽  
Partial Molal Volumes ◽  
Molal Volumes

Partial Molal Volumes of Aqueous Ions

1957 ◽  
Vol 61 (10) ◽  
pp. 1426-1429 ◽  
Author(s):  
Loren G. Hepler
Keyword(s):  
Partial Molal Volumes ◽  
Aqueous Ions ◽  
Molal Volumes

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.

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