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Year : 2021, Volume : 14, Issue : 3
First page : ( 1226) Last page : ( 1232)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2021.00218.3

Investigation, correlation and DFT study for solubility of malonic acid in water + methanol and water + ethanol binary solvents at T = 293.15 to 313.15 K

Pawar Ramesh R., Nahire Sandip B.*

Department of Chemistry, M.S.G. College, Malegaon, Maharashtra, India.

*Corresponding Author E-mail: nahiresandip@gmail.com

Online published on 30 April, 2021.


The measurement of solubilities of malonic acid in water, methanol, ethanol, water + methanol and water + ethanol binary solvent mixtures were carried out over the entire composition range between 0 to 1 weight fraction of methanol and ethanol at (293.15, 295.15, 298.15, 300.15, 303.15, 305.15, 308.15, and 313.15) K. The experimental solubility data were correlated by using Apelblat and van't Hoff equation. These equations provide better correlation in these measurements. DFT was carried out to correlate solubility in various solvents system. Thermodynamic parameters (ΔHsoln0, ΔSsoln0, ΔGsoln0, %ζH, %ζTS) of solution were calculated using van't Hoff equation.



Solubility, Malonic acid, Apelblat equation, DFT.


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