An apparatus for determining the purity of organic compounds

Abstract

An apparatus is described for determining with an accuracy of 10 per cent the total amount of impurities in small (0.05 cm 3) samples of organic compounds, containing more than 98 mole per cent of the main component. A simple method for calculating the degree of purity, applicable to Skau's method, is proposed. A correction for the heat of melting of eutectic mixtures formed by the main component with impurities is introduced.