C. Poole, B. R. Kersten, S. S. Ho
Feb 21, 1986
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Journal
Journal of Chromatography A
Abstract
Abstract The synthesis of six alkylammonium salts of the general formula Rn—a NH+a X−, where R = ethyl, propyl, butyl or sec.−butyl, X− = nitrate or thiocyanate, n It was concluded that the alkylammonium nitrate the thiocyanate salts could be used as mobile phases in liquid chromatography when mixed with a second solvent of low viscosity. Suitable equations are given to predict the viscosity of mixtures of alkylammonium nitrate and thiocyanate salts in all volume proportions with water, methanol, acetonitrile, tetrahydrofuran and dichloromethane. The liquid organic salts form immiscible solvent pairs with non-polar organic solvents and should also be suitable for use in liquid—liquid chromatography and liquid—liquid extraction.