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Title: Solubility and saturation apparent specific volume of some sodium sulfonamides in propylene glycol + water mixtures at 298.15 K
Author: Muñoz, María M.
Rodríguez, Carlos J.
Delgado, Daniel Ricardo
Peña, María A.
Jouyban, Abolghasem
Martínez, Fleming
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Issue Date: 5-Jul-2015
Advisor / Validator: Delgado, Daniel Ricardo
Keywords: Sodium sulfonamides Propylene glycol Solubility Apparent specific volume Jouyban–Acree model
Resume: Artículo científico
Abstract: Equilibrium solubility of sodiumsulfadiazine (Na.SDZ), sodiumsulfamerazine (Na.SMR), and sodiumsulfamethazine (Na.SMT),was determined in aqueous binary mixtures of propylene glycol (PG) at 298.15 K. If the solubility values expressed in both concentration scales are considered, i.e. mole fraction and molarity, in water-rich mixtures the solubility decrease as: Na.SDZ N Na.SMT N Na.SMR, whereas, in PG-rich mixtures the observed order is: Na.SMT N Na.SDZ N Na.SMR. In all cases the solubility in neat water is higher than those in neat PG. Correlation of the solubility data obtainedwasmade bymeans of the Jouyban–Acreemodel for all the sodiumsulfonamides. Otherwise, apparent specific volumes (ϕVsp) of sodiumsulfonamides at saturationwere also calculated in all the mixtures. The average ϕV sp values are as follows: 0.663 cm3 g−1 for Na.SDZ, 0.723 cm3 g−1 for Na.SMR,and 0.740 cm3 g−1 for Na.SMT, with a variation lower than 5.0% in each case.
Table Of Contents: 1. Introduction, 2. Experimental, 2.1. Reagents and materials, 2.2. Solvent mixture preparation, 2.3. Solubility determinations, 3. Results and discussion, 3.1. Experimental solubility of sodium sulfonamides, 3.2. Solubility calculations with the Jouyban–Acree model, 4. Conclusions, Acknowledgments,m, References.
Program: Ingeniería Industrial
Headquarters: Neiva
Type: Artículo
CC Licence: Licencia CC
Citation: M.M. Muñoz, C.J. Rodríguez, D.R. Delgado, M.Á. Peña, A. Jouyban, F. Martínez. Solubility and saturation apparent specific volume of some sodium sulfonamides in propylene glycol + water mixtures at 298.15 K. Journal of Molecular Liquids 211 (2015) 192–196
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Appears in Collections:Ingeniería Industrial

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