CONTENTS 11 



CHAPTER *AGB 



trolytes in the Presence of Other Strong Electrolytes; c. The 

 Solubility of Salts of Higher Type in the Presence of Other 

 Electrolytes. 



XI. OTHER PROPERTIES OF ELECTROLYTIC SOLUTIONS .... 280 



1. The Diffusion of Electrolytes. 2. Density of Electro- 

 lytic Solutions. 3. Velocity of Reactions as Affected by the 

 Presence of Ions. 4. Optical Properties of Electrolytic Solu- 

 tions. 5. The Electromotive Force of Concentration Cells. 

 6. Thermal Properties of Electrolytic Solutions. 7. Change 

 of the Transference Numbers at Low Concentrations. 8. 

 Reactions in Electrolytic Solutions. 9. Factors Influencing 

 lonization; a. The Ionizing Power of Solvents in Relation to 

 Their Constitution; b. The Relation between the lonization 

 Process and the Constitution of the Electrolyte. 



XII. THEORIES RELATING TO ELECTROLYTIC SOLUTIONS . . . 323 



1. Outline of the Problem Presented by Solutions of Elec- 

 trolytes. 2. Electrolytic Solutions from the Thermodynamic 

 Point of View; a. Scope of the Thermodynamic Method; b. 

 Jahn's Theory of Electrolytic Solutions; c. Comparison of the 

 Thermodynamic Properties of Electrolytes; Inconsistencies in 

 the Older Ionic Theory; The Thermodynamic Method; 

 Numerical Values ; Solubility Relations According to Bronsted. 

 3. Theories Taking into Account the Interionic Forces; a. 

 Theory of Malmstrom and Kjellin; b. Theory of Ghosh; c. 

 Milner's Theory; d. Hertz's Theory of Electrolytic Conduc- 

 tion. 4. Miscellaneous Theories. 5. Recapitulation. 



XIII. PURE SUBSTANCES, FUSED SALTS, AND SOLID ELECTROLYTES 351 

 1. Substances Having a Low Conducting Power. 2. 



Fused Salts. 3. Conductance of Glasses. 4. Solid Elec- 

 trolytes. 5. Lithium Hydride. 



XIV. SYSTEMS INTERMEDIATE BETWEEN METALLIC AND ELECTRO- 



LYTIC CONDUCTORS 366 



1. Distinctive Properties of Metallic and Electrolytic Con- 

 ductors. 2. Nature of the Solutions of the Metals in Am- 

 monia. 3. Material Effects Accompanying the Current. 4. 

 The Relative Speed of the Carriers in Metal Solutions. 5. 

 Conductance of Metal Solutions. 



XV. THE PROPERTIES OF METALLIC SUBSTANCES . . . . . 384 



1. The Metallic State. 2. The Conduction Process in 

 Metals. 3. The Conductance of Elementary Metallic Sub- 



