Abstract
Mutual solubility of a glycerol-water-butanol system was measured at 20° and 40° and the solubility was found to be greater at higher temperature. Distribution curve of glycerol in the water-rich and butanol-rich phases was calculated and glycerol was found to be distributed in larger amount in the former phase. It would not be suitable to determine the amount of water in glycerol from the mutual solubility of a three-componental system, with butanol as an entrainer and butanol is not a good extraction solvent for extracting glycerol from its aqueous solution since the selective power of butanol as a solvent is 0.449 (20°) and -0.128 (40°). The tie-line data was linear in Bachman's equation but was only partially linear by Hand's and Major's equations.
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