A new procedure is proposed for vapor-phase gas-chromatographic determination of the solubilityof partly soluble volatile compounds in liquids. The method is based on successive pneumatic sampling totake small, equal portions of the equilibrium gas from the gas-liquid system containing an excess ofthe volatile component forming the second liquid phase. The gas-chromatographic determination of thiscomponent in the samples of the equilibrium gas makes it possible to find the slope of the isotherm describing the distribution of the substance between the liquid and gas phases near the saturation point, estimate the nonlinear portion of the isotherm, and calculate the substance content in the saturated solution.
Russian Journal of Applied Chemistry – Springer Journals
Published: Oct 13, 2004
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