Solubility of citric, malonic, and malic acids in different solvents from 303.2 to 333.2 K

The solubilities of citric, malic and malonic acids in ethanol, 1,4-dioxane, water, acetonitrile, 2-propanol, and tetrahydrofuran (THF) were measured over the temperature range of 303.2–333.2 K. The concentrations of acids in different solvents were analyzed by gravimetric method. The measured solubility data were also compared with the available literature data. The experimental solubility data were correlated with the modified Apelblat equation. The calculated solubilities show good agreement with the experimental solubility data.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► In this work the solubilities of citric, malic and malonic acids in ethanol, 1,4-dioxane, water, acetonitrile, 2-propanol, and tetrahydrofuran were measured using gravimetric method. ► In this work effect of functional group on solubility was investigated. ► The experimental solubility data were correlated with the modified Apelblat equation.