Effect of temperature and concentration alterations on the volumetric, acoustic and hydration studies of l-threonine in aqueous lactose solutions
| Autor: | Rajinder K. Bamezai, Ruby Rani, Ashwani Kumar, Tanu Sharma |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Molar
Aqueous solution Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Thermal expansion 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound Molar volume chemistry Volume (thermodynamics) Speed of sound Materials Chemistry Compressibility Physical and Theoretical Chemistry Lactose 0210 nano-technology Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 276:961-969 |
| ISSN: | 0167-7322 |
| Popis: | The density and speed of sound in the solution of l -threonine in the concentration range (0.025 to 0.2) mol kg−1 in water and various lactose solutions (0 to 6 mass% of lactose in water) have been carried out at temperatures range of (293.15 to 313.15) K. The experimental data is used to obtain the apparent molar volume (Vϕ), limiting apparent molar volume (V0ϕ), limiting apparent molar transfer volume (V0ϕ,tr), as well as apparent molar compressibility (Ks,ϕ), limiting apparent molar compressibility (K0s,ϕ), limiting apparent molar transfer compressibility (K0s,ϕ,tr), pair and triplet interaction coefficients for volume and compressibility (VAB, VABB and KAB, KABB), limiting partial molar expansibility (ϕ0E), coefficient of thermal expansion (α) and hydration number (nH) of amino acid. The results have been interpreted in terms of solute-solute and solute-solvent interactions; and hydration characteristics of amino acid molecules in aqueous lactose solutions. |
| Databáze: | OpenAIRE |
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