Densities, Sound Speed, and UV Absorption Studies of Trisodium Citrate and Tripotassium Citrate in Aqueous Solutions of 1-Hexyl-3-methylimidazolium Chloride [C₆mim][Cl]

Abstract

Densities, ρ, and speeds of sound, u, for trisodium citrate and tripotassium citrate in (0.01 and 0.03) mol·kg −1 in aqueous solutions of 1-hexyl-3-methylimidazolium chloride ([C 6 mim][Cl]) over a range of temperatures T = (288. 15, 293.15, 298.15, 303.15, 308.15) K have been measured at atmospheric pressure. The experimental densities are used to calculate the apparent molar volume, limiting apparent molar volumes, and transfer volumes. Experimental values of the speed of sound were used to estimate apparent molar isentropic compression, limiting apparent molar isentropic compression, and transfer parameter. The structure making or breaking ability of 1-hexyl-3-methylimidazolium chloride has been discussed in terms of the sign of (∂ 2 V ϕ 0 /∂T 2 ). The UV absorption studies have also been made in this study. The results have been discussed in terms of competing patterns of interactions prevailing in the solute and solvent, that is, citrate salt + [C 6 mim][Cl] + water mixtures.

How Different Electrolytes Can Influence the Aqueous Solution Behavior of 1-Ethyl-3-Methylimidazolium Chloride: A Volumetric, Viscometric, and Infrared Spectroscopy Approach

“…The interactions of some phosphate and citrate salts with 1-hexyl-3-methylimidazolium chloride as a function of temperature have been investigated by a combination of volumetric and acoustic measurements by Kumar and coworkers. The absorption values revealed the existence of interactions between citrate/phosphate salt, IL, and water molecules, which supported results obtained from volumetric and acoustic data (Kumar and Chadha, 2014 , 2015 ).…”

Effect of Citrate Salts on the Volumetric and Ultrasonic Properties of Sucrose in Aqueous Solutions at Temperatures T = (288.15–318.15) K

“…The speeds of sound of sucrose in (0.0, 0.2, 0.4, and 0.6) mol·kg –1 aqueous solutions of TSC and in (0.0, 0.2, 0.4, and 0.6) mol·kg –1 aqueous solutions TPC increase with the concentration and temperature of solution. Further, we also compared the densities of aqueous TSC and aqueous TPC solutions with literature − values. The graphical representations are given in Figures and , respectively.…”

“…Plots of experimental (filled triangle) and literature (□, ref ; ο, ref ; +, ref ; and ×, ref ) densities for aqueous tripotassium citrate solutions at different temperatures [(a) 288.15 K, (b) 298.15 K, and (c) 308.15 K].…”

Densities and Speeds of Sound of d(+)-Glucose, d(−)-Fructose, d(+)-Xylose and d(−)-Ribose in Aqueous Tripotassium Citrate Solutions at Different Temperatures

“…The calculated values of V ϕ using eq along with density values and K ϕ,S calculated using eq along with speeds of sound values for d ­(+)-glucose, d ­(−)-fructose, d ­(+)-xylose and d ­(−)-ribose in aqueous tripotassium citrate solutions at different temperatures are given in Tables and , respectively. The experimental values of densities and speed of sounds for (tripotassium citrate + water) mixtures have been compared with literature values ,,,,− and are graphically represented in Figures and , respectively. It is observed from the figures that experimental density values at 0.6 mol·kg –1 deviate from the literature values.…”

“…These mixtures protect drugs from inactivation in long-term storage. As a part of ongoing work in our laboratory on citrate salts, data on densities, speeds of sound, and viscosity for various mixtures of citrate salts − have been reported earlier. In a previous work , we have shifted our focus toward mixtures having another important class of compounds that is, saccharides with citrate salts in which volumetric and acoustic behavior of mixtures of (saccharides + trisodium citrate + water) have been studied with the help of density and speeds of sound measurements.…”