Effect of glucose/lactose on the solution thermodynamics of thiamine hydrochloride in aqueous solutions at different temperatures.
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| Title: | Effect of glucose/lactose on the solution thermodynamics of thiamine hydrochloride in aqueous solutions at different temperatures. |
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| Authors: | Rani, Ruby1, Kumar, Ashwani1, Bamezai, Rajinder K.1 rkbamezai@gmail.com |
| Source: | Journal of Molecular Liquids. Aug2017, Vol. 240, p642-655. 14p. |
| Subjects: | Aqueous solutions, Viscosity, Glucose, Lactose, Carbohydrates |
| Abstract: | Apparent molar volume, V ϕ , apparent molar isentropic compression, K ϕ,s and viscosity B -coefficients have been evaluated for one of the vitamins, thiamine hydrochloride (thiamine-HCl), in aqueous solutions of two carbohydrates, glucose and lactose, at temperatures (293.15–313.15) K from density, speed of sound and viscosity data. Accordingly, limiting apparent molar volume, V 0 ϕ , was obtained from Redlich-Meyer equation whereas limiting apparent molar isentropic compression, K 0 ϕ,s , was calculated on the basis of Debye-Huckel theory. The transfer parameters (Δ tr V 0 ϕ , Δ tr K 0 ϕ,s and Δ tr B ) at infinite dilution, limiting apparent molar expansivity, E 0 ϕ , Hepler's constant, ( ∂ 2 V 0 ϕ / ∂ T 2 ) P , thermal expansion coefficient, α , pair and triplet interaction coefficients and solvation number, S n , have also been estimated. The viscosity B -coefficients and activation parameters have been obtained from Jones-Dole equation and transition state theory. The results have been discussed in terms of competing patterns of interactions prevailing in the solute and solvent. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
| Abstract: | Apparent molar volume, V ϕ , apparent molar isentropic compression, K ϕ,s and viscosity B -coefficients have been evaluated for one of the vitamins, thiamine hydrochloride (thiamine-HCl), in aqueous solutions of two carbohydrates, glucose and lactose, at temperatures (293.15–313.15) K from density, speed of sound and viscosity data. Accordingly, limiting apparent molar volume, V 0 ϕ , was obtained from Redlich-Meyer equation whereas limiting apparent molar isentropic compression, K 0 ϕ,s , was calculated on the basis of Debye-Huckel theory. The transfer parameters (Δ tr V 0 ϕ , Δ tr K 0 ϕ,s and Δ tr B ) at infinite dilution, limiting apparent molar expansivity, E 0 ϕ , Hepler's constant, ( ∂ 2 V 0 ϕ / ∂ T 2 ) P , thermal expansion coefficient, α , pair and triplet interaction coefficients and solvation number, S n , have also been estimated. The viscosity B -coefficients and activation parameters have been obtained from Jones-Dole equation and transition state theory. The results have been discussed in terms of competing patterns of interactions prevailing in the solute and solvent. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 01677322 |
| DOI: | 10.1016/j.molliq.2017.05.127 |
