Study of interactions of d(+)-glucose and d(−)-fructose with trilithium citrate in aqueous medium through volumetric and ultrasonic properties over the temperature range T = (288.15–318.15) K. (March 2017)

• Record Type: Journal Article
• Authors: Kumar, Harsh; Sheetal, ; Behal, Isha
• Is Part Of: Journal of chemical thermodynamics. Volume 106(2017)
• Page Start: 59
• Page End: 70
• Publication Date: 2017-03
• Subjects: d(+)-Glucose -- d(−)-Fructose -- Apparent molar property -- Ion-ion interaction -- Trilithium citrate; Thermodynamics -- Periodicals; Thermochemistry -- Periodicals; Thermodynamique -- Périodiques; Thermochimie -- Périodiques; Thermochemistry; Thermodynamics; Periodicals; 541.369
• DOI: 10.1016/j.jct.2016.11.010
• Languages: English
• ISSNs: 0021-9614

Abstract

Highlights: Apparent molar volumes of D(+)-glucose and D(−)-fructose and aqueous TLC were determined. Transfer parameters suggest ion-ion interactions between TLC + water + saccharides mixtures. The negative values shows the dominance of hydrophilic–hydrophilic interactions. Positive values of VAB and K AB predicts pair-wise interactions. Abstract: The interactions of salt trilithium citrate (TLC) with saccharidesd (+)-glucose andd (−)-fructose, have been investigated in aqueous medium from density ( ρ ) and speed of sound ( c ) measurements at T = (288.15–318.15) K and experimental pressure p = 0.1 MPa. The apparent molar volume ( V ϕ ), the partial molar volume ( V ϕ o ) and standard partial molar volumes of transfer ( Δ V ϕ o ) for both saccharides, from water to aqueous trilithium citrate (TLC) have been calculated from density data. The limiting apparent molar expansibilities have also been calculated. The apparent molar isentropic compression ( K ϕ, s ), partial molar isentropic compression ( K ϕ, s o ) and partial molar isentropic compression of transfer ( Δ K ϕ, s o ) have been calculated from speed of sound results. The pair and triplet interaction coefficients have been calculated from partial molar volumes of transfer and partial molar isentropic compression of transfer. A detailed insight into the physicochemical interactions e.g. ion–hydrophilic, hydrophilic–hydrophilic and hydrophilic–hydrophobic interactions in the saccharide-salt system along with the structure-making/structure-breaking tendency of the saccharides, have been retrieved through the perusal of these calculated parameters.