Journal of Modern Chemistry & Chemical Technology
Volume 5, Issue 2 (2014)
Published
Table of contents
-
Assessment of Some Heavy Metals of Spring Waters and Sediments from Iddo Wara Wale Area of Dale Sadi District, Kellem Wollega, Oromia, Ethiopia
Abstract: The present study was undertaken to assess the spring water quality in Iddo Wara Wale area of Dale Sadi district, Kellem Wollega, Oromia, Ethiopia. A total of 20 L samples were collected from five densely populated springs- Ittisa, Abba Moga, Kersa, Ele Gonda and Merfata. All the samples were analyzed for six heavy metals (Mn, Cd, Cu, Cr, Fe and Zn) using standard methods. The sediment samples collected along with …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 2, 2014 · pp. 1–10 Read article
-
Catalyst, Mixed Catalyst and Additive Effects on the Oscillatory Behaviour of Pyrogallol based Chemical Oscillator
Abstract: The present work is aimed to investigate the effect of the metal ions used as single as well as mixed catalysts and Mo(VI) ion as additive on the oscillatory behaviour of the reaction system comprising of pyrogallol (1,2,3-trihydroxybenzene) as organic substrate and inorganic bromate as oxidant in aqueous sulphuric acid medium (1.5 mol Lï€1). The reactions were monitored both spectrophotometrically and potentiometrically. From kinetic study, the order of reactivity of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 2, 2014 · pp. 11–19 Read article
-
Quantification of Chromium (III) and Chromium (VI) in the Electroplating Effluents of Homicho Ammunition Engineering Industry
Abstract: Chromium is widely used for plating of the surface of ferrous materials to protect from rust as well as increasing strength. The industrial effluents of wastewater from metal plating workshops into the environment have produced huge and complex wastes which far exceed the assimilative capacity of nature and lead to an irreversible health and ecological consequences. So, the study was aimed to quantify chromium (III) and chromium (VI) in the …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 2, 2014 · pp. 20–26 Read article
-
Synthesis, Characterization and Biological Activity: Co(II), Ni(II), Cu(II) and Zn(II) Complexes of Schiff Bases Derived from 4-Cyanobenzaldehye and 4-Amino-5-Mercapto-3-Methyl/Ethyl-1,2,4-triazoles
Abstract: Co(II), Ni(II), Cu(II) and Zn(II) complexes of bidentate Schiff bases derived from the condensation of 4-amino-5-mercapto-3-methyl-1,2,4-triazole and 4-amino-3-ethyl-5-mercapto-1,2,4-triazole with 4-cyanobenzaldehyde have been synthesized. The synthesized Schiff bases and their metal complexes were then characterized by elemental analysis, spectroscopic methods (IR, NMR, electronic spectra), magnetic moment measurement and thermogravimetric techniques. The electronic spectra and magnetic moment studies suggest octahedral geometry for Co(II), Ni(II) and Zn(II) complexes and square planar geometry for …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 2, 2014 · pp. 27–36 Read article