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Equilibrium studies on pure compounds : normal propyl alcohol Croil, Thomas Arnold

Abstract

Three grades of normal propyl alcohol have been purified by several methods. The degree of purity has been established by refractometric, ebulliometric, and viscometric measurements, the best product being 99.65 volume % pure as measured by gas chromatographic analysis. A vapor-liquid equilibrium apparatus has been modified and reconstructed in preparation for vapor pressure measurements of n-propanol up to the critical point. Several semi-empirical equations have been fitted to Young's vapor pressure data for n-propanol with a view to their utilization in presenting data on an homologous series or on a generalized basis. In all cases the per cent difference between calculated and experimental values was less than 2.0% with a maximum average difference of 0.9%.

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