JES College

Jālna, India

JES College

Jālna, India
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Shimpi R.,Badrinarayan Barwale Mahavidyalaya | Fadat R.,Badrinarayan Barwale Mahavidyalaya | Janrao D.M.,JES College | Farooqui M.,Dr Rafiq Zakaria College for Women Aurangabad Post graduate and Research Center
Journal of Chemical and Pharmaceutical Research | Year: 2014

The kinetics of oxidation of sulfanilamide by hexacyanoferrate (abbreviated as HCF) (III) ions in aqueous alkaline medium at constant ionic strength 0.01mol/dm3 and temperature 298°K has been studied spectrophotometrically. The reaction exhibit 1:3 stoichiometry and follows first order kinetics in [HCF (III)] and in [alkali]. The dependence of the rate on substrate concentration has been found to be of fractional order type. The ionic strength of the reaction mixture shows positive salt effect on the reaction rate. To calculate thermodynamic parameters the reaction has been studied at six different temperatures from 283°K to 333°K. Mechanism involving formation of complex between hexacyanoferrate and sulfanilamide has been proposed. Azoxybenzene-4, 4’-disulfonamide have been identified chromatographically and spectroscopically as the final product of oxidation of sulfanilamide. Based on the kinetic data and product analysis a reaction mechanism is proposed. © 2014, Journal of Chemical and Pharmaceutical Research. All rights reserved.

Shaikh M.,Shri Anand College | Shafique M.,Milind Science College | Agrawal B.R.,JES College | Farooqui M.,Post Graduate and Research Center
Rasayan Journal of Chemistry | Year: 2011

Density and Viscosity of drug Cetrimide (CMD) in various aqueous mixtures of ethanol have been determined. These results are further extended for solutes like electrolyte NaCl and non-electrolyte sucrose in the presence of this drug. The density and viscosity data have been analysed for the evaluation of partial molar volume, molar excess volume, Gibbs free energy of viscous flow, excess viscosity and A and B viscosity coefficients using Jones-Dole equation. It can be inferred from these studies that this drug acts as a structure-making compound due to hydrophobic hydration of drug molecules. B-coefficients values are found to be positive thereby showing drug solvent interactions. Furthermore these results are correlated to understand the solution behavior of drug. © 2011 RASAYAN.

Bajaj S.B.,JES College | Raibagkar R.L.,Gulbarga University | Shinde G.N.,Indira Gandhi College
Progress in Electromagnetics Research Symposium | Year: 2010

Ceramic material showing ferroelectric behaviour are being used in many optics and electro-optics application. A large number of applications of ferroelectric ceramics also exploit properties that are an indirect consequence of ferroelectricity, such as dielectric, piezoelectric and electro-optic properties. Ferroelectric relxors with high Curie temperature have been prepared by usual ceramic technique. All the samples of (Ba1-xS rx)(Fe0:5Nb0:5)O3 [BSFN] were characterized at room temperature by X-Ray diffraction using Cu-Ka radiation and found to have single phase and cubic structure. Pyroelectric measurements were carried out in the temperature range 25°C to 400°C. The pyroelectric prperties of Sr-doped ferroelectric BSFN and their solid solutions were investigated in the temperature range covering their transition points. In these ceramics, a peak in pyroelectric currents and coe±cients were observed at Curie temperatures. These Curie temperatures are consistent with that investigated in dielectric and hysteresis property. It is observed that the peak value of current and coe±cient changes with Sr-concentration.

Patil S.S.,Jes College | Mirgane S.R.,Jes College | Arbad B.R.,Dr. Babasaheb Ambedkar Marathwada University
Journal of Saudi Chemical Society | Year: 2014

Densities and viscosities for the four binary liquid mixtures of methyl acrylate, ethyl acrylate, butyl acrylate and methyl methacrylate with hexane-1-ol at temperatures 303.15 and 313.15. K and at atmospheric pressure were measured over the entire composition range. These values were used to calculate excess molar volumes and deviation in viscosities which were fitted to Redlich-Kister polynomial equation. Recently proposed Jouyban Acree model was also used to correlate the experimental values of density and viscosity. The mixture viscosities were correlated by several semi-empirical approaches like Hind, Choudhary-Katti, Grunberg-Nissan, Tamura and Kurata, McAllister three and four body model equations. A graphical representation of excess molar volumes and deviation in isentropic compressibility shows positive nature whereas deviation in viscosity shows negative nature at both temperatures for all four binary liquid mixtures. Positive values of excess molar volumes show that volume expansion is taking place causing rupture of H-bonds in self associated alcohols. The results were discussed in terms of molecular interactions prevailing in the mixtures. © 2011.

Zaid A.A.,Post Graduate and Research Center | Farooqui M.,Dr Rafiq Zakaria College For Women | Janrao D.M.,Jes College
Journal of Saudi Chemical Society | Year: 2015

Binary and ternary complexes of Co(II), Ni(II), Cu(II) and Zn(II) with atenolol as hypertension drug and glycine have been determined pH metrically at room temperature and 0.01M ionic strength (NaClO4) in aqueous solution. The formation of various possible species has been evaluated by computer program and discussed in terms of various relative stability parameters. © 2012.

Zaid A.A.,Post Graduate and Research Center | Mohsin M.,Post Graduate and Research Center | Farooqui M.,Post Graduate and Research Center | Janrao D.M.,Post Graduate and Research Center | Janrao D.M.,Jes College
Journal of Saudi Chemical Society | Year: 2013

Proton-ligand dissociation constant of 1-cyclopropyl-1,4-dihydro-4-oxo-7-(1-piperazinyl) quinolone-3-carboxylic acid is ciprofloxacin and metal-ligand stability constants of its complexes with some metal ions have been determined potentiometrically in the presence of (0.01, 0.02 and 0.03mol/dm3) NaClO4. The order of the stability constants of the formed complexes increases in the sequence Cu2+, Fe3+, Ni2+ and Zn2+ and decreases with increase in the concentration of ionic strength. © 2011 King Saud University.

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