6 STUDY OF ABSORPTION SPECTRA. 



* 



Results Continued. Page 



o-Nitrobenzoic and Change in Concentration 76 



p-Nitrobenzoic and Change in Concentration 76 



1, 2, 4, Dinitrobenzoic and Change in Concentration 76 



1, 2, 4, Dihydroxybenzoic and Change in Concentration 76 



Tetrachlorphthalic acid and Change in Concentration 76 



Discussion of Results 77 



CHAPTER IV. 



THE CONDUCTIVITY AND VISCOSITY OF SOLUTIONS OP POTASSIUM IODIDE AND SODIUM 

 IODIDE IN MIXTURES OF ETHYL ALCOHOL AND WATER. 



Experimental 80 



Pure Anhydrous Alcohol 80 



Specific-Gravity Determinations 80 



Mixed Solvents 81 



Dissolved Salts 82 



Pipettes 82 



Conductivity Cells 82 



Temperature Regulators 83 



Corrections for Expansion and Contraction 84 



Viscosities 85 



Viscosity and Fluidity of Potassium Iodide in Alcohol- Water Mixtures 86 



Temperature Coefficients of Fluidity of Potassium Iodide 87 



Viscosity and Fluidity of Sodium Iodide in Alcohol-Water Mixtures 87 



Conductivity of Potassium Iodide in Mixtures of Ethyl Alcohol and Water 88 



Conductivity of Sodium Iodide in Mixtures of Ethyl Alcohol and Water 88 



Discussion of the Results 89 



Viscosity and Fluidity 89 



Conductivity 91 



Summary 96 



Conclusions 96 



CHAPTER V. 



CONDUCTIVITY AND VISCOSITY OF SOLUTIONS OF RUBIDIUM SALTS IN MIXTURES OF 



ACETONE AND WATER. 



Experimental 98 



Conductivity Apparatus 98 



Bridge 98 



Cells 99 



Constant Temperature Baths 99 



Temperature Regulation 99 



Viscosity Apparatus 100 



Solvents 101 



Water 101 



Acetone 101 



Mixtures of Acetone and Water. 101 



Solutions 102 



Salts 102 



Procedure 102 



Conductivity Measurements 102 



Temperature Coefficients 103 



Molecular Conductivity of Rubidium Chloride 104 



Molecular Conductivity of Rubidium Bromide 104 



Molecular Conductivity of Rubidium Iodide 105 



Molecular Conductivity of Rubidium Nitrate 106 



Viscosity and Fluidity of Rubidium Chloride and Temperature Coefficients 



of Fluidity 107 



Viscosity and Fluidity of Rubidium Bromide and Temperature Coefficients 



of Fluidity 108 



Viscosity and Fluidity of Rubidium Iodide and Temperature Coefficients 



of Fluidity 109 



Viscosity and Fluidity of Rubidium Nitrate and Temperature Coefficients 



of Fluidity. . HO 



Comparison of the Viscosity and Fluidity values of Rubidium Bromide in 



Acetone-water Mixtures 



Discussion Ill 



Summary 1 16 



