TABLE OF CONTENTS 



PART I 

 INTRODUCTION TO THE STUDY OF COLLOIDS 



PAGE 



INTRODUCTION xv 



CHAPTER I 



WHAT ARE COLLOIDS? 3-9 



Sols Suspension, emulsion, solution Gels Structure of jellies. 



CHAPTER II 



SURFACES 13-33 



Surfaces Chemical combination Solution Adsorption Sur- 

 face pellicles. 



CHAPTER III 



SIZE OF PARTICLES, MOLECULAR WEIGHT, OSMOTIC PRESSURE, CONDUC- 

 TIVITY 41 



CHAPTER IV 



PHENOMENA OF MOTION 49-56 



Brownian Zsigmondy movement Diffusion Diffusion in jellies 

 Membranes. 



CHAPTER V 



CONSISTENCY OF COLLOIDS 64-73 



Internal friction Swelling and shrinking Life curve of colloids. 



CHAPTER VI 



OPTICAL AND ELECTRICAL PROPERTIES OF COLLOIDS 75-87 



Optical properties Electrical properties Salting out Floccula- 

 tion Radioactive substances as colloids. 



CHAPTER VII 



METHODS OF COLLOID RESEARCH 89-126 



Dialysis Ultrafiltration Apparatus Pressure Gauging of 

 ultrafilters Adsorption by niters Applications Diffusion in 

 aqueous solution Diffusion in a jelly Osmotic pressure Os- 

 motic compensation method Surface tension Adsorption In- 

 ternal friction Melting, coagulation and solidification temperatures 



xi 



