Conductance of concentrated aqueous solutions of electrolytes. II. Strong polyvalent electrolytes

1970 ◽  
Vol 35 (8) ◽  
pp. 2244-2249 ◽  
Author(s):  
M. Postler
Keyword(s):  
Aqueous Solutions ◽  
Concentrated Aqueous Solutions ◽  
Solutions Of Electrolytes

scholarly journals IX.—On the Relationship between Concentration and Electrolytic Conductivity in Concentrated Aqueous Solutions

1906 ◽  
Vol 45 (1) ◽  
pp. 241-259 ◽  
Author(s):  
John Gibson
Keyword(s):  
Aqueous Solutions ◽  
General Relationship ◽  
Electrolytic Conductivity ◽  
Dilute Solutions ◽  
Concentrated Solutions ◽  
Concentrated Aqueous Solutions ◽  
Solutions Of Electrolytes ◽  
Weak Electrolytes ◽  
The Relationship

Although great advances have been made during the last thirty years in our knowledge of dilute solutions, there has been no corresponding advance in respect of concentrated solutions. This is primarily due to the fact that hitherto no simple and general relationship has been discovered between the conductivity and the concentration of concentrated solutions of electrolytes. Ostwald's law of dilution holds only for dilute solutions of weak electrolytes, and the formulæ of Rudolphi and Van T'Hoff are applicable only to dilute solutions of good electrolytes. It seems therefore important to inquire whether the difficulty may not be to some extent overcome by an alteration in the mode of representing the facts.

scholarly journals XXXII.—The Boiling and Freezing Points of Concentrated Aqueous Solutions, and the Question of the Hydration of the Solute

1908 ◽  
Vol 45 (4) ◽  
pp. 855-884 ◽  
Author(s):  
S. M. Johnston
Keyword(s):  
Aqueous Solutions ◽  
Boiling Point ◽  
Freezing Point ◽  
Conductivity Data ◽  
Concentrated Aqueous Solutions ◽  
Freezing Points ◽  
Solutions Of Electrolytes

In this paper the results of observations of the elevation of the boiling point of aqueous solutions of electrolytes are given, and a few results of observations of the depression of the freezing point, together with conductivity data obtained by observations of conductivity at about 99·4° and 0° Centigrade.

scholarly journals Preliminary Note on the Conductivity of Concentrated Aqueous Solutions of Electrolytes

1906 ◽  
Vol 26 (1) ◽  
pp. 234-237
Author(s):  
J. Gibson
Keyword(s):  
Electrical Conductivity ◽  
Aqueous Solutions ◽  
Electrolytic Conductivity ◽  
Preliminary Note ◽  
Chemical Action ◽  
Concentrated Aqueous Solutions ◽  
Solutions Of Electrolytes ◽  
Chemical Behaviour

In a paper communicated to the Society in 1897, the author drew attention to increase in electrical conductivity as a characteristic of photo-chemical action, and in a second communication in December of the same year, made the following statement—“It would appear that the chemical behaviour of the acids just mentioned (HNO3, HCl, H2SO4) depends in many of their reactions on whether their concentration is above or below that corresponding to their maximum electrolytic conductivity.”

Gas holdup in bubbled beds of aqueous solutions of electrolytes

1977 ◽  
Vol 42 (9) ◽  
pp. 2642-2650
Author(s):  
F. Kaštánek ◽  
J. Kratochvíl ◽  
J. Pata ◽  
M. Rylek
Keyword(s):  
Aqueous Solutions ◽  
Gas Holdup ◽  
Solutions Of Electrolytes

The metachor as a characteristic of the association of electrolytes in aqueous solutions

1984 ◽  
Vol 49 (5) ◽  
pp. 1061-1078 ◽  
Author(s):  
Jiří Čeleda ◽  
Stanislav Škramovský
Keyword(s):  
Aqueous Solutions ◽  
Apparent Volume ◽  
Solutions Of Electrolytes ◽  
Molal Volumes ◽  
The Difference ◽  
High Concentrations ◽  
Experimental Values ◽  
Suitable Characteristic ◽  
Association Of Ions ◽  
Very High

Based on the earlier paper introducing a concept of the apparent parachor of a solute in the solution, we have eliminated in the present work algebraically the effect which is introduced into this quantity by the additivity of the apparent molal volumes. The difference remaining from the apparent parachor after substracting the contribution corresponding to the apparent volume ( for which the present authors suggest the name metachor) was evaluated from the experimental values of the surface tension of aqueous solutions for a set of 1,1-, 1,2- and 2,1-valent electrolytes. This difference showed to be independent of concentration up to the very high values of the order of units mol dm-3 but it was directly proportional to the number of the free charges (with a proportionality factor 5 ± 1 cm3 mol-1 identical for all studied electrolytes). The metachor can be, for this reason, a suitable characteristic for detection of the association of ions and formation of complexes in the solutions of electrolytes, up to high concentrations where other methods are failing.

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