In a study of the effect of physical properties on the contact efficiency of distillation, various properties of selected binary liquid systems have been measured in these laboratories over a wide temperature range, and extrapolated to the boiling points. Properties of the acetone-water system (8, 9, 75), the methanoltoluene system (6), and the benzene-acetic acid system (7) have been reported. Two more acetone systems were of interest in the distillation study, one with benzene as the second component, and one with acetic acid. A few measurements of the viscosity and density of the acetone-benzene system at 20°and 25°C were reported (7, 2, 4, 13), but the properties at the boiling points of the solutions could not be estimated from these limited values. For acetone-acetic acid, again only a few scattered measurements could be located (3,77,12,17).
REAGENTSBaker analyzed reagent grade (J. T. Baker Co., Phillipsburg, N. J.) benzene, acetone, and acetic acid were further purified for use. The purification procedures and the comparisons of the properties of the final products with reported values have been given (7, 10). In both cases, the properties of the final products were in close accord with those reported for very pure materials.
he published information on the volatility of titanium tetrachloride has consisted mainly of only three vapor pressure studies, one by Arii (7), one by Scháfer and Zeppernick ( 14), and one embodied in an equation by Dreisbach (5), based upon data obtained over the pressure range of about 100 to 760 mm.
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