Solubility of Potassium Carbonate and Potassium Hydrocarbonate in Methanol
ABSTRACT The solubility of potassium carbonate in methanol and the acid−base interaction of these compounds with each other have been considered. The reaction results in the formation of methoxide and hydrocarbonate of potassium. The reported values on the solubility of potassium carbonate differ essentially from the data described in the literature. The solubility of potassium hydrocarbonate in methanol has also been determined.
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ABSTRACT: The composition of the vapor and liquid phases of the KOH + CH3OH system has been studied by the gas chromatography (GC) method at 25 °C. It has been found that the methanol vapor concentration, and the quantity of potassium methoxide formed as a result of the acid–base reaction of potassium hydroxide with methanol, both depend on the KOH/CH3OH mole ratio. The maximum mass fraction of potassium methoxide that forms is 2.6% at the mole ratio0.018. KeywordsPotassium hydroxide-Methanol-Potassium methoxide-Vapor-liquid equilibriumJournal of Solution Chemistry 01/2010; 39(3):335-342. · 1.13 Impact Factor