Journal of Modern Chemistry & Chemical Technology
Volume 7, Issue 2 (2016)
Published
Table of contents
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Study of the Hammett equation for oxidation of 2 – Hydroxy – 1 - Naphthalidene Anil and para substituted chloroanils by potassium bromate in acid medium
Abstract: The kinetics of oxidation of the Schiff base and its substituted anils by potassium bromate in aquo-acetic acid medium has been studied in this work. The study of thermodynamic parameters is done, and the rate constants for the reaction are determined. The plot of log{ks/k0} against the substituent constant (ï³ ) is plotted for para and meta substitution and the reaction constant (ï²) is calculated. The plot of ï„H against …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 1–4 Read article
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Effect of Beneficiation on the Characteristics of Gambe and Pindiga Bentonitic Clays
Abstract: Comparative study of the effect of beneficiation on the chemical, physical and mineralogical properties of Pindiga and Gambe bentonitic clays was carried out. The raw clays were mined and beneficiated using the wet beneficiation method. The raw and beneficiated clay samples were characterized using XRD and XRF techniques, the specific density and pH values of the clays were also determined. The characterization results showed that the clays developed higher purity …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 20–26 Read article
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Synthesis and Characterization of Schiff Bases Derivatives of Heterotrimetallic [Al(III); Sn(II); Ti(IV)]-µ-oxoisopropoxide-µ-oxon-propoxide [SnO2TiAl(OPri )2(OPrn )3]
Abstract: Tin diacetate and aluminium isopropoxide in equimolar proportion in xylene affords the complex [(OAc)SnOAl(OPri )2] which on reaction with Ti(OPrn )4 in 1:1 molar ratio yielded a new organoheterotrimetallic-μ-oxoisopropoxide-μ-oxon-propoxide [SnO2TiAl(OPri )2(OPrn )3] with continuous liberation of isopropyl acetate and propyl acetate formed during the course of reaction. The preparation of Schiff base complexes of the compound [SnO2TiAl(OPri )2(OPrn )3] was carried out in refluxing benzene by the reaction of µ- …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 27–37 Read article
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Soap Flotation: A Brief Review
Abstract: Homologues of fatty acids derived from vegetable oils/fats are used as collectors as such or as their soaps in the flotation of silicate/oxide/salt type minerals. Straight chain saturated fatty acid anions are envisaged to form compact adsorbed patches on the mineral surface which are more effective in imparting surface hydrophobicity to the minerals than the loose/fluffy patches formed by unsaturated fatty acid anions that are bent at the double bonds. …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 5–8 Read article
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Synthesis and Spectroscopic Studies of 12-Membered Macrocyclic Transition Metal Complexes with Tetradentate Ligand
Abstract: Tetra-aza macrocyclic transition metals complexes of type: [M(C12H4N8)X2]; where, M = Co (II), Ni(II), Cu(II), Zn(II); X= Cl-1 , NO3 - , CH3COOhave been synthesized and characterized. On the basis of conductance data; elemental analyses, the character of the complexes have been suggest and it was found that all the complexes have 1:2:2 stoichiometry and are nonelectrolytic in nature. Tentative geometry of the new synthesized macrocyclic complexes had been proposed …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 9–19 Read article