Experimental study and correlation of the excess molar volume of binary liquid solutions of (amines + water) at different temperatures and atmospheric pressure

2021 ◽  
Author(s):  
Pablo Andes Riveros Munoz ◽  
Gustavo Vieira Olivieri ◽  
Ronaldo Gonçalves dos Santos ◽  
Ricardo Belchior Torres
Keyword(s):  
Experimental Study ◽  
Molar Volume ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Binary Liquid ◽  
Liquid Solutions ◽  
Different Temperatures

scholarly journals Excess molar volume of the acetonitrile + alcohol systems at 298.15K. Part I: Density measurements for acetonitrile + methanol, + ethanol systems

2002 ◽  
Vol 67 (8-9) ◽  
pp. 581-586 ◽  
Author(s):  
Ivona Grguric ◽  
Aleksandar Tasic ◽  
Bojan Djordjevic ◽  
Mirjana Kijevcanin ◽  
Slobodan Serbanovic
Keyword(s):  
Molar Volume ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Entire Composition Range ◽  
Density Measurements ◽  
Binary Liquid ◽  
Liquid Systems ◽  
Vibrating Tube Densimeter ◽  
Kister Equation

The excess molar volume VE of the binary liquid systems acetonitrile methanol and acetonitrile + ethanol has been evaluated from density measurements at 298.15K and at atmospheric pressure over the entire composition range. A vibrating tube densimeter, type Anton Paar DMA 55, was applied for these measurements. The Redlich?Kister equation was used to fit the experimental VE data.

scholarly journals Densities and viscosities for binary mixtures of n-heptane with alcohols at different temperatures

2017 ◽  
Vol 82 (7-8) ◽  
pp. 891-903 ◽  
Author(s):  
Maria Budeanu ◽  
Vasile Dumitrescu
Keyword(s):  
Molar Volume ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Excess Functions ◽  
Experimental Measurements ◽  
Different Temperatures ◽  
The One ◽  
Kister Equation

Densities (?) and viscosities (?) of the binary systems n-heptane with alcohols (ethanol, propan-1-ol and propan-2-ol) were measured at temperatures between 288.15 and 308.15 K and at atmospheric pressure, over the whole composition range. The excess values of molar volume (VE) and viscosity (?E) were calculated from experimental measurements. The excess functions of the binary systems were fitted to Redlich?Kister Equation. Comparison between experimental excess molar volume and the one calculated from Flory and Prigogine?Flory?Patterson theories, has also been done. The viscosity results were fitted to the equations of Grunberg?Nissan, Heric?Brewer, Jouyban?Acree and McAllister. Also, the activation energies of viscous flow have been obtained and their variations with compositions have been discussed.

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.

Characterizaton and Volumetric Studies of Magnetite (Fe3O4) Nanofluids at Different Temperatures

2015 ◽  
Vol 37 ◽  
pp. 28-35 ◽  
Author(s):  
Muhammad Asghar Jamal ◽  
Ammar Bin Yousaf ◽  
Muhammad Kaleem Khosa ◽  
Muhammad Usman ◽  
Majid Khan
Keyword(s):  
Particle Size ◽  
Molar Volume ◽  
Atmospheric Pressure ◽  
Apparent Molar Volume ◽  
Isentropic Compressibility ◽  
Size Difference ◽  
Volumetric Properties ◽  
Practical Applications ◽  
Different Temperatures ◽  
Uv Visible

Magnetite nanofluid has been prepared in citric acid based medium. Their stability and polydispersity level have been characterized by UV-visible spectrophotometry.The volumetric properties such as apparent molar volume, partial molar volume and isentropic compressibility of nanofluid have been measured at temperature range from 298.15K to 313.15K at atmospheric pressure. The obtained results were interpreted in terms of particle-particle and particle-fluid interactions, and compared with commercially available magnetite nanofluid in terms of particle size difference. It was observed that the influence of particle size on measured volumetric parameters is significant for any practical applications of fluid flow. The differences in measured quantities were determined qualitatively by considering the state of aggregation / particle size distribution of the nanofluids.

scholarly journals Densities, Viscosities and Excess Properties for Dimethyl Sulfoxide with Diethylene Glycol and Methyldiethanolamine at Different Temperatures

2021 ◽  
Vol 12 (1) ◽  
pp. 116
Author(s):  
Maria Magdalena Budeanu ◽  
Vasile Dumitrescu
Keyword(s):  
Molar Volume ◽  
Diethylene Glycol ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Partial Molar Volumes ◽  
Excess Properties ◽  
Excess Functions ◽  
Viscosity Deviation ◽  
Different Temperatures ◽  
Experimental Density

Densities and viscosities of the binary systems dimethylsulfoxide with diethylene glycol and methyldiethanolamine were measured at temperatures ranging from 293.15 to 313.15 K, at atmospheric pressure and over the entire composition range. The experimental density data was correlated as a function of composition using Belda’s and Herraez’s equations, and as a function of temperature and composition using the models of Emmerling et al. and Gonzalez-Olmos-Iglesias. The viscosity results were fitted to the Grunberg-Nissan, Heric-Brewer, Wilson, Noda, and Ishida and Eyring-NRTL equations. The values of viscosity deviation (), excess molar volume (VE), partial molar volumes ( and ) and apparent molar volume ( and ) were determined. The excess functions of the binary systems were fitted to the polynomial equations. The values of thermodynamic functions of activation of viscous flow were calculated and discussed.

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