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INTRODUCTION:

The important characteristics of a solute in a solution been affected by solvent blending or co solvency. In the case of mixture of solvents, the additional variable composition is expressed in terms of volume fractions of the solvent w or in molar fractions x. Past few decades the focus of conductivity measurements turn in to different mixed-solvent systems. Different experimental and theoretical studies were fixed to the aqua-organic solvent and binary organic solvents media1-4. Due to the addition of organic solvent changes the dielectric constant of the medium in turn the structure of the medium also changes. Among the mixture of solvents water and alcohol mixtures are of special interest because they are widely used both experimentally and theoretically and also shows high dielectric constant value. 3, 5-dinitro salicylic acid acid is an aromatic dicarboxylic acid is widely used in synthesis of many chemical compound. It is practically useful in a lot of industrial applications. The water and alcohol mixtures also emphasize the interactions between aqueous and non-aqueous solvent molecules through hydrogen bonding5.

It proves that there is possible formation of highly complex-hydrogen bonded structure in the liquid. The more polar solvent like ethanol is readily forming homogeneous mixtures with water. Due to this homogeneous behaviour of alcohol strongly hydrogenbonded self-associated with liquids. A closed structure of alcohol -water mixtures reveals the fact that the hydrophobic hydrocarbon...