© 2020 JETIR February 2020 , Volume 7, Issue 2 www.jetir.org (ISSN-2349-5162) JETIRDI06130 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 669 Partial Molar Volume of binary mixtures of 8,10- dinitro-7h-benzo[c]carbazole in Ethanol, Acetone, DMF at different concentration,308.15 K Pankaj S. Chaudhari * , Shrikant S. Patil a * Department of Chemistry, Shri Vitthal Rukmini Arts,Commerce,Science College Sawana,Mahagaon, Dist-Yavatmal (M.S) India. a Department of lifelong learning, Sant Gadge Baba University Amaravati (M.S) India * Corresponding author: Dr. Pankaj S. Chaudhari asst. Prof. Department of Chemistry, Shri Vitthal Rukmini College Sawana,Mahagaon, Dist-Yavatmal (M.S) India. Abstract: Ultrasonic velocity, density and viscosity of binary mixture 8,10-dinitro-7H-benzo[c]carbazole-70% Ethanol, 8,10- dinitro-7H benzo[c]carbazole -70% Acetone, and 8,10-dinitro-7H-benzo[c]carbazole –70 % DMF were measured at different concentrations of 8,10-dinitro-7H-benzo[c]carbazole and temperature at 308.15 K. Acoustical parameter like partial molar volumes were determined from experimental data of density, viscosity and ultrasonic velocity. The effect of concentration variations in the strength of molecular interaction has been studied. Effective correlation was observed in terms of solute-solvent and solvent-solvent interaction at all concentration. Keyword: Ultrasonic velocity, density, viscosity, partial molar volumes, 8, 10-dinitro-7H-benzo[c]carbazole. I. INTRODUCTION Carbazole and its derivatives are an important type of nitrogen containing aromatic heterocyclic compounds, possess desirable electronic and charge transport properties, as well as large π- conjugated system, and the various functional groups are easily introduced into the structurally rigid carbazole ring 1 . Carbazole ring is present in a variety of naturally occurring medicinally active substances. For example, the Carbazomycin are an unprecedented class of antibiotics with a carbazole framework 2-3 .These characteristics result in the extensive potential applications of carbazole-based derivatives in the field of medicinal chemistry (antitumor, antimicrobial, antihistaminic, anti-inflammatory, psychotropic agents) 4 . NH N + O O - N + O O - Structure of 8,10-dinitro-7H-benzo[c]carbazole The studies of solution properties of liquid solution of polar and non-polar components have great applications in industrial and technological process 5 .The recent publications in this area shows that the many researchers give attention toward study of ultrasonic velocity measurement and study of acoustical properties 6 . In view of broad biological activity of carbazole, due to this we here plan to study possible theoretical approach for the determination of ultrasonic parameters are useful for the studies of physicochemical properties and molecular interaction of any binary liquid. II. MATERIAL AND EXPERIMENTAL The compound 8, 10-dinitro-7H-benzo[c] carbazole synthesize by known method 7,8 .The densities of Ethanol, Acetone, DMF and 8,10-dinitro-7H-benzo[c] carbazole solution were measured by using specific gravity bottle, mass measurements electronic balance and the viscosity was measured using Ostwald’s viscometer. The ultrasonic velocities of pure components and their mixture were measured by ultrasonic interferometer (Mittal enterprises, model F-81s) at 2 MHz having accuracy ± 1 ms −1 in velocity. 2.1 Theory Ultrasonic velocity can be used to calculated thermodynamic and acoustic parameter, which more reliable, precise and very useful in the study of molecular interaction in binary liquid mixture. Given acoustical parameters are calculated by using various equations. Ultrasonic velocity (U): The ultrasonic (u) can be measured using ultrasonic interferometer at the frequency 2MHz 9 . U = v λ (1) Where, u is the ultrasonic velocity, λ is the wavelength. Partial Molar Volume (Vb): The partial molar volumes have to be extrapolated to concentration zero using the following equation which calculate the apparent molar volume at the finite concentrations (C) 10 . Vb= (M/р 0 )-10 3 /C *[p/p 0 -1] (2)