Mutual solubility of water and pyridine derivatives

Abstract

Mutual binary solubilities have been measured for derivatives of pyridine and piperidine. Data are given for 36 water-organic pairs at temperatures of 0-90 o C. It was found that 9 binary systems were miscible in all proportions over the temperature range, 14 showed partial solubility over the entire temperature range, and 13 were partially soluble at higher temperatures, but had lower critical solution temperatures and were completely miscible with water at lower temperatures. The very large number of systems exhibiting a lower critical solution temperature indicates that this feature is characteristic for these compounds