Izvorni znanstveni članak
https://doi.org/10.15255/CABEQ.2014.2129
Solubility of Thiamine in Pure and Mixed Solvents in Function of Temperature
L. C. P. Borges
; Department of Chemical Engineering, Federal University of Triângulo Mineiro, Av. Dr. Randolfo Borges Junior, 1200, Uberaba, Minas Gerais
H. R. Rezende
; Department of Chemical Engineering, Federal University of Triângulo Mineiro, Av. Dr. Randolfo Borges Junior, 1200, Uberaba, Minas Gerais
A. C. Granato
; Department of Chemical Engineering, Federal University of Triângulo Mineiro, Av. Dr. Randolfo Borges Junior, 1200, Uberaba, Minas Gerais
R. F. Pires
; Department of Chemical Engineering, Federal University of Triângulo Mineiro, Av. Dr. Randolfo Borges Junior, 1200, Uberaba, Minas Gerais
Sažetak
The present paper details the solid-liquid equilibrium (SLE) of thiamine in pure dimethylsulfoxide (DMSO) and aqueous solvent mixtures of varying DMSO concentrations. The solubilities were measured in the temperature range of 298.15 K to 323.15 K at 5.0 K intervals, under atmospheric pressure, by employing gravimetric analysis. The experimental results indicate that the vitamin’s solubility increases with increasing temperature and the water mass present in the initial solvent mixture. The adjustments using rational models were satisfactory, achieving adequate correlations and predicting the values of the solubility measurements in the laboratory with acceptable accuracy.
Ključne riječi
solid-liquid equilibrium; thiamine; vitamin; solvent; rational models; solubility
Hrčak ID:
137551
URI
Datum izdavanja:
6.4.2015.
Posjeta: 3.202 *