REFRACTIVE INDICES OF THE BINARY SYSTEMS ISO-PROPANOL - WATER AND ISO-PROPANOL - TOLUENE

2008 ◽  
Vol 7 (3) ◽  
pp. 309-312
Author(s):  
Gabriela Lisa ◽  
Cerasela Huhurez ◽  
Ramona-Mihaela Matran ◽  
Catalin Lisa
Keyword(s):  
Binary Systems ◽  
Refractive Indices

scholarly journals The Study of Excess Refractive Indices of Benzene+Ethanol and Hexane+Ethanol Binary Systems

2020 ◽  
Vol 5 (1) ◽  
pp. 19-23
Author(s):  
Dilbar Bozorova ◽  
Shukur Gofurov ◽  
Kokhkharov A. M. ◽  
Oksana B. Ismailova
Keyword(s):  
Electrical Conductivity ◽  
Mole Fraction ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Weak Interactions ◽  
Cluster Formation ◽  
Molecular Complexes ◽  
Refractive Indices ◽  
Binary Solutions ◽  
Wide Range

In many technological processes, ethanol solvents and their mixtures are actively used to prepare nanostructured matrices, substrates and devices. A change in the concentration of one of the components leads to a change in the structure as a whole, affecting a number of quantities, such as the electrical conductivity of solutions, the diffusion coefficient, and the thermodynamics of processes, which is important to take into account when selecting optimal systems that use new nanomaterials with predetermined properties and characteristics for targeted preparation. The most informative method in the study of structural processes associated with the cluster formation of molecules is the method of refractometry. In this work, the refractive indices measured for binary system benzene+ethanol and hexane+ethanol at the 298.15K and the atmospheric pressure are reported. The refractive indices were measured over a wide range of benzene, hexane and ethanol concentrations (0÷1.0 mole fractions). It has been shown that hetero-molecular complexes in binary solutions are formed through π•••HO bonding at concentration of ~0.4 a mole fraction of benzene and through H-bonding at concentration of ~0.5 mole fraction of hexane. Relatively weak interactions are determined at concentration of ~0.2 and ~0.7 mole fraction of benzene.

scholarly journals Viscosities and refractive indices of binary systems acetone+1-propanol, acetone+1,2-propanediol and acetone+1,3-propanediol

2014 ◽  
Vol 20 (3) ◽  
pp. 441-455 ◽  
Author(s):  
Emila Zivkovic ◽  
Mirjana Kijevcanin ◽  
Ivona Radovic ◽  
Slobodan Serbanovic
Keyword(s):  
Experimental Data ◽  
Refractive Index ◽  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Refractive Indices ◽  
Mixing Rules ◽  
Viscosity Deviations ◽  
Kister Equation

Viscosities and refractive indices of three binary systems, acetone+1-propanol, acetone+1,2-propanediol and acetone+1,3-propanediol, were measured at eight temperatures (288.15, 293.15, 298.15, 303.15, 308.15, 313.15, 318.15, 323.15)K and at atmospheric pressure. From these data viscosity deviations and deviations in refractive index were calculated and fitted to the Redlich-Kister equation. The viscosity modelling was done by two types of models: predictive UNIFAC-VISCO and ASOG VISCO and correlative Teja-Rice and McAlister equations. The refractive indices of binary mixtures were predicted by various mixing rules and compared with experimental data.

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