scholarly journals Mutual Comparison Studies of Mono and Di Cations in Binary and Ternary Aqueous Electrolytes Solution at 298.15 K

2021 ◽  
Vol 2 (1) ◽  
pp. 30-36
Author(s):  
Yasmin Akhtar
Keyword(s):  
Molar Volume ◽  
Apparent Molar Volume ◽  
Viscosity Measurement ◽  
Free Energies ◽  
Solvent Interactions ◽  
Bonding Effect ◽  
Mutual Comparison ◽  
Hydrogen Bonding Effect ◽  
B Coefficients ◽  
Dehydration Effect

Densities and viscosities of binary and ternary electrolytes solution have been determined experimentally at 298.15 K.  The results obtained from density and viscosity measurement have been used to calculate apparent molar volume φv partial molar volume φov at infinite dilution, relative viscosities hrel, A and B coefficients, and free energies of activation of viscous flow of solvent Δ µ10# and solute Δ µ20. The results are discussed in terms of the dehydration effect of the weak ion-ion and strong ion-solvent interactions. The properties of these systems are discussed in terms of the charge, size, and hydrogen bonding effect.

scholarly journals Effect of the Temperature and Solvents on the Solvolysis of Barium Bromide in Aqueous-Organic Solutions: Volumetric and Viscometric Study

2021 ◽  
Vol 12 (1) ◽  
pp. 339-350
Keyword(s):  
Molar Volume ◽  
Apparent Molar Volume ◽  
Solvent Structure ◽  
Density Data ◽  
Solvent Interactions ◽  
Different Temperatures ◽  
Organic Solutions ◽  
Viscometric Study ◽  
Structure Breaking ◽  
B Coefficients

Volumetric and viscometric properties of solutions containing barium bromide in an aqueous solution of ethylene glycol and 1,4-dioxane have been discussed at different temperatures such as 298.15K 303.15K, 308.15K, and 313.15K. The Masson’s equation was used to determine the apparent molar volume, V_ϕ, standard partial molar volume, V_ϕ^0, molar expansibilities,E_ϕ^0 by taking the density data. The values of viscosity and density were used in the Jones-Dole equation to find the viscosity B coefficients, which were used to estimate the ion-solvent interactions. The values of Hepler’s constant (∂^2 V_ϕ^0/ ∂T2)p and the viscosity B-coefficients have been used to deduce the solvent structure-promoting or structure breaking tendency of the salt in the studied mixtures. In the current study, the positive values of Hepler’s constant and the negative values of dB/dT show that barium bromide in the considered solvents mainly behaves as a structure promoter.

scholarly journals Studies on Volumetric and Viscometric Properties of L-Glutamic Acid in Aqueous Solution of Glucose over a Range of Temperatures (298K to 323K)

2020 ◽  
Vol 9 (4) ◽  
pp. 1547-1561
Keyword(s):  
Aqueous Solution ◽  
Glutamic Acid ◽  
Viscous Flow ◽  
Molar Volume ◽  
Mass Fraction ◽  
Apparent Molar Volume ◽  
Hydration Number ◽  
Free Energies ◽  
Solvent Interactions ◽  
Different Temperatures

In this work, volumetric and viscometric properties of L-glutamic acid in water and aqueous glucose solutions (5%, 10%, 15%, and 20% of glucose, w/w in water) have been measured as a function of molal concentration (0.02 mol.kg-1 to 0.16 mol.kg-1) of L-glutamic acid at different temperatures T= (293.15, 303.15, 308.15, 313.15 and 323.15) K. By using experimental densities (ρ) and viscosities (η) data, apparent molar volume (φv), experimental slope (Sv), limiting apparent molar volume (φv0), limiting apparent molar volume transfer (Δφv0)tra, limiting apparent molar expansibilities (Eφ0), Hepler’s constant (δEφ0/δT)p, Falkenhagen coefficient A, and Jones-Dole coefficient B have been computed. Gibbs free energies of activation of viscous flow per mole of solvent (μ_1^(0#)) and per mole of solute 〖(μ〗_2^(0#)), hydration number (Hn) is also calculated. The results are discussed based on solute-solute and solute-solvent interactions in these systems. From the results, it is observed that there exists a structure making propensity of L-glutamic acid in water and in the different mass fraction of aqueous glucose solutions, which increases with the increase of glucose concentrations.

Molecular Interactions Investigation of L-Histidine in Water and in Aqueous Citric Acid at Different Temperatures Using Volumetric and Acoustic Methods

2018 ◽  
Vol 232 (3) ◽  
pp. 393-408 ◽  
Author(s):  
Dinesh Kumar ◽  
Shashi Kant Sharma
Keyword(s):  
Citric Acid ◽  
Molar Volume ◽  
Atmospheric Pressure ◽  
Apparent Molar Volume ◽  
Adiabatic Compressibility ◽  
Acid Solutions ◽  
Solvent Interactions ◽  
Intermolecular Free Length ◽  
Acoustic Methods ◽  
Different Temperatures

AbstractDensities,ρand ultrasonic speeds, u of L-histidine (0.02–0.12 mol·kg−1) in water and 0.1 mol·kg−1aqueous citric acid solutions were measured over the temperature range (298.15–313.15) K with interval of 5 K at atmospheric pressure. From these experimental data apparent molar volume ΦV, limiting apparent molar volume ΦVOand the slopeSV, partial molar expansibilities ΦEO, Hepler’s constant, adiabatic compressibilityβ, transfer volume ΦV, trO, intermolecular free length (Lf), specific acoustic impedance (Z) and molar compressibility (W) were calculated. The results are interpreted in terms of solute–solute and solute–solvent interactions in these systems. It has also been observed that L-histidine act as structure maker in water and aqueous citric acid.

scholarly journals Using Volumetric Method the Study of Molecular Interactions of NSAID (DP) in Water and Water + 1M Urea at Different Temperatures

2021 ◽  
Vol 12 (3) ◽  
pp. 3956-3965
Keyword(s):  
Molar Volume ◽  
Molecular Interactions ◽  
Apparent Molar Volume ◽  
Solvent Interactions ◽  
Different Temperatures ◽  
Solute Interactions ◽  
Hydrotropic Agent ◽  
First Time ◽  
Molar Expansibility ◽  
Experimental Density

Understanding possible interactions of drugs and the factors that command such interactions could be helpful to control their disadvantageous effects upon human health. In this study, volumetric properties for the solution of diclofenac potassium (DP), a non-steroidal anti-inflammatory drug (NSAID), were investigated for the first time to look into its molecular interactions at four different temperatures varying from 298.15 K to 313.15 K at 5 K intervals in water as well as aqueous hydrotropic agent urea (1M) solutions. Experimental density data obtained using a pycnometer have been taken to estimate apparent molar properties, i.e., limiting apparent molar volume (〖V_ɸ〗^0), apparent molar volume (V_ɸ), limiting apparent molar expansibility (〖E_ɸ〗^0) and apparent molar expansibility (E_ɸ). The results obtained were discussed in terms of solute-solvent and solute-solute interactions in the studied systems. The obtained results from volumetric data were explored in terms of the existence of solute-solvent interactions in aqueous systems of drug solutions.

scholarly journals Apparent molar volume and coefficients of Jones-Dole equation for the evaluation of ion- solvent interactions of barium chloride in aqueous 1, 4-dioxane and ethylene glycol solutions at T= (298.15 K to 313.15) K and at atmospheric pressure

2020 ◽  
Vol 10 (4) ◽  
pp. 5901-5909 ◽  
Keyword(s):  
Ethylene Glycol ◽  
Molar Volume ◽  
Apparent Molar Volume ◽  
Activation Parameters ◽  
Barium Chloride ◽  
State Theory ◽  
Viscosity Data ◽  
Solvent Interactions ◽  
Viscosity B Coefficient ◽  
The Given

The viscosity and density of barium chloride have been measured at T= (298.15-313.15) K in aqueous solutions of 1, 4-Dioxane (1,4-DO) and Ethylene glycol (EG). Jones–Dole equation was used to analyze the viscosity data. The apparent molar volume, V_ϕ limiting apparent molar volume, V_ϕ^0 are calculated from the density data. Limiting apparent molar expansibilities, E_ϕ^0 have been used to describe the temperture dependency of V_ϕ^0. The standard volume of transfer, ΔtV_ϕ^0 and viscosity B-coefficient of transfer, ΔtB of barium chloride from water to aqueous 1, 4-DO and EG solutions were systematizing the different types of interactions in the given solutions. The structure making and breaking capacity of solute in solutions was interpreted with the help of Helper equation. The positive value of (∂2V_ϕ^0/∂T2)p suggests the structure making nature for BaCl2 in given solution. It is observed that Friedman-Krishnan co-sphere model explains the increase in the transfer volume of BaCl2 with an increase in 1,4-DO and EG concentrations. The activation parameters of the viscous flow of the given solutions were calculated and interpreted using transition state theory.

Determination of solute-solute and solute-solvent interaction of pyrimidine5-carbonitrile in aqueous DMSO at 298.15 K.

2020 ◽  
Vol 10 ◽  
Author(s):  
Jayraj S. Aher ◽  
Anant V. Kardel ◽  
Dnyneshawar D. Lokhande ◽  
Manoj R. Gaware ◽  
Arun M. Bhagare
Keyword(s):  
Molar Volume ◽  
Apparent Molar Volume ◽  
Solvent Interaction ◽  
Solvent Interactions ◽  
Aqueous Dmso ◽  
Viscosity Study ◽  
Solute Interactions ◽  
Semi Empirical ◽  
High Electronegativity

Introduction: In this reported work, we have used 80 % aqueous dimethyl sulphoxide (DMSO) for density and viscosity measurement of pyrimidine-5-carbonitrile at 298.15 K. The obtained experimental results shows that as concentration increases density and viscosity increases. From the results of density and viscosity, we have found apparent molar volume, limiting apparent molar volume, semi-empirical parameters, Falkenhagen coefficients and Jones Dole coefficients. Method: The apparent molar volume and limiting apparent molar volume having negative values indicated electostrictive solvation of ions and weak or absence of ion solvent interactions respectively. Result & Discussion : Falkenhagen coefficients is independent of concentration having positive value has shown strong solute-solute interactions and Jones-Dole coefficients having negative value has shown weak solute-solvent interactions. The strong solute-solute interactions were presents in A-1 as compared to A-2 compound because high electronegativity of oxygen atom. These parameters had given idea about molecular interactions such as solute-solute, solute-solvent and solvent-solvent. Conclusion: We have reported density and viscosity study of 4-amino-2-hydroxy-6-phenylpyrimidine-5-carbonitrile and 4- amino-2-mercapto-6-phenylpyrimidine-5-carbonitrile in 80 % aqueous DMSO solution at 298.15 K temperature. It has been observed that Strong molecular association in A-2 as compared to A-1 due to negative values of Øv.

scholarly journals Studies on Molecular Interactions of Some Electrolytes in Water by Volumetric and Viscometric Measurments at T= (303.15 to 323.15 K)

2011 ◽  
Vol 3 (2) ◽  
pp. 437-444 ◽  
Author(s):  
D. C. Kabiraz ◽  
T. K. Biswas ◽  
M. N. Islam ◽  
M. E. Huque
Keyword(s):  
Aqueous Solution ◽  
Molar Volume ◽  
Apparent Molar Volume ◽  
Potassium Nitrate ◽  
Magnesium Nitrate ◽  
Viscosity Data ◽  
Structural Effects ◽  
Density Data ◽  
Solvent Interactions ◽  
Volume Viscosity

The viscosities and densities of potassium chloride, potassium nitrate, magnesium chloride, and magnesium nitrate have been measured at 303.15, 308.15, 313.15, 318.15 and 323.15 K in aqueous solution. The viscosity data were analyzed by using Jones–Dole equation. The values of apparent molar volume, limiting apparent molar volume have been evaluated from the density data. The results were interpreted in the light of ion–ion and ion–solvent interactions and of structural effects of the solutes in solution.Keywords: Density; Apparent molar volume; Viscosity; Jones–Dole equation.© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi:10.3329/jsr.v2i2.6288                J. Sci. Res. 3 (2), 437-444 (2011)

scholarly journals SOLUTE-SOLUTE AND SOLUTE-SOLVENT INTERACTIONS STUDIES OF SACCHARIDES IN AQUEOUS SODIUM BUTYRATE SOLUTION AT 308K TEMPERATURES

2020 ◽  
Vol 6 (11) ◽  
pp. 10-17
Author(s):  
Yasmin Akhtar ◽  
S. M. Yasin
Keyword(s):  
Aqueous Solution ◽  
Sodium Butyrate ◽  
Ternary Systems ◽  
Apparent Molal Volume ◽  
Partial Molal Volume ◽  
Molal Volume ◽  
Solvent Interactions ◽  
Bonding Effect ◽  
Solute Interactions ◽  
Hydrogen Bonding Effect

Density and viscosity of D (+) galactose and D (+) lactose mono hydrates in aqueous solution of sodium butyrate solutions have been determined experimentally at 308 K. The results obtained from density and viscosity measurement have been used to calculate the, apparent molal volume фv, partial molal volume ф0v, transfer volume ∆ф0tr at infinite dilution, A and B coefficient and Sv experimental slope. The results are interpreted in terms of solute-co- solute and solute-solvent interactions in these systems. It has been observed that there exist strong solute-solvent and solute-solute interactions and complex formation between in these ternary systems. The properties of the D (+) galactose and D (+) lactose mono hydrates in aqueous solution of sodium butyrate solutions are discussed in terms of the structure making and hydrogen bonding effect.

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