Refractometry as a method for the physicochemical analysis of organic systems

CONTENTS
I. Introduction 53
II. Origins of the refractometric method of physicochemical analysis and its development in the first half of the 20th century 53
III. The additivity of refractive indices 56
IV. Relationship between the deviations from additivity of refractive indices, densities, and specific refractions 58
V. Unique points on refractive-index diagrams 60
VI. Classification of refractive-index isotherms 62
VII. The use of refractometry for the study of interaction between components in binary liquid systems 63