Thermodynamics of aqueous solutions of boric acid |
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Authors: | Vincenzo Brandani Giovanni Del Re Gabriele Di Giacomo |
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Institution: | (1) Dipartimento di Chimica Ingegneria Chimica e Materiali, Università de L'Aquila, I-67100 L'Aquila, Italy |
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Abstract: | Vapor pressures of aqueous solutions of boric acid over a wide range of acid concentrations were measured from 40 to 100°C. The results, together with solubility data taken from the literature, can be described with a thermodynamic model which uses the Wilson equations to express the activity coefficients of water and boric acid. Only three temperature independent adjustable parameters are required; one of these represents the entropy of fusion of boric acid, data which are not available in the literature. |
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Keywords: | Boric acid vapor pressure solubility entropy of fusion activity coefficients |
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