Time filter

Source Type

Durrani A.,Dr Rafiq Zakaria College For Women
Rasayan Journal of Chemistry | Year: 2011

pH-metry have been used most widely for the simultaneous equilibrium of transition metals with different amino acids like Histidine, Glutanic acid, Proline and L-aspartic acid using aqua-organic solvents. The ionic strength was maintained and complex formation was observed. © 2011 RASAYAN. All rights reserved.

Rahim S.A.,Milliya Senior College | Hussain S.,Sir Syed College | Farooqui M.,Dr Rafiq Zakaria College For Women
International Journal of ChemTech Research | Year: 2014

The binary complexes of Mandelic acid (MA) with transition metal ions metal ligand ratio (1:2) are studied potentiometrically in aqueous solution using Irving Rosotti method. The Proton ligand constant and metal ligand stability constants are studied at 27°C. Ionic strength is maintained by using 1N NaNO3.1:1 and 1:2 complexes are reported. Stability constant values are calculated by SCOGS computer programme. The values are verified by half integral and point wise method. High values of stability constant are reported. The order is in agreement with Irving-Williams order. © 2014, Sphinx Knowledge House. All rights reserved.

Al-Saeedi A.,Postgraduate and Research Center | Farooqui M.,Postgraduate and Research Center | Farooqui M.,Dr Rafiq Zakaria College For Women
Oriental Journal of Chemistry | Year: 2013

The (4+2) cycloaddition or the Dials-Alder reaction is one of the most important reactions in the field of organic synthesis. The Dials-Alder reaction well known to all chemists is 100 years old. The Diels-Alder reaction during that period it has been studied intensively, where there are more papers, many books and reviews in the Dials-Alder reactions making the complete study of these works impossible, therefore in this article we concentrate on the review and generalization of the Diels-Alder reaction of 9-substituted anthracene with a variety of dienophiles.

Jirekar D.B.,Anandrao Dhonde Alias Babaji College | Ghumare P.P.,Anandrao Dhonde Alias Babaji College | Farooqui M.,Dr Rafiq Zakaria College For Women
Journal of Industrial Pollution Control | Year: 2015

Equilibrium sorption of Nickel on Vignaunguiculata husk was studied using batch adsorption method. The applicability of Langmuir, Freundlich, Dubinin-Radushkevich, and Temkin equations was investigated. Of the four adsorption isotherms, the R2 value of Temkin isotherm model was the highest and exhibited the best fit with the experimental data. The maximum monolayer coverage (Q0) from Langmuir isotherm model was determined to be 2000.00 mg/g, the separation factor indicating a favorable sorption experiment is 0.594. According to Freundlich isotherm model the sorption intensity (n) which is indication of favorable sorption is 0.692 with correlation coefficient 0.945. The heat of adsorption process was determined from Temkin isotherm model (1626.009 J/mole) and the mean free energy was estimated from Dubinin-Radushkevich isotherm model (8.558 × 10-4 J/mol). Which indicate that adsorption experiment followed a physical process. © EM International Printed in India. All rights reserved.

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.

Discover hidden collaborations