A method to expand solubility equation for pure sugar solutions to a generalized solubility model has been developed. The proposed approach can be used to calculate the solubility of a substance in an impure solvent with the known equation of its solubility in a pure solvent. A generalized mathematical model of solubility of sucrose in pure and industrial solutions has been obtained. The adequacy of the model was tested on 6 samples of impure solutions, including a water-ethanol-sucrose mixture. The solubility of sucrose in ethanol for a mass concentration from 1.0 to 99.0% of ethanol in . . .
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