B: Chemistry (148)
GJSFR: B
Voltammetric behaviour of carbonyl group containing pesticides topramezone,fenomidone and methiocarb
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 In this work the effect of functional groups (substuents) on the reduction potentials of carbonyl group containing pesticides topramezone ,fenomidone and methiocarb were studied. Deferential pulse adsorptive stripping voltammetry, cyclic voltammetry, millicoulometry and controlled potential electrolysis were used for the determination of reduction potentials and electrode mechanisms. HMD...
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Authors Dr. Sarvareddy Rajasekhar Reddy , Neelam Y.Sreedhar, Kukkambacum Chandra mohan , Maddela NagarajuRead Journal Click Here
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Page No. 45 to 50
Removal of Mn+2 and Fe+3 ions from waste water and underground water using Calcium Silicate (CS)
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 The determination of heavy metal ions are limited by two difficulties, very low concentration of heavy metal ions which may be lower than the detection limit of many traditional analytical techniques such as atomic absorption spectrometry, colorimetric, and voltametry. And the interfering effects of the matrix. Calcium silicate (CS) is obtained as mentioned in the literature, This synthe...
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Authors Dr. Wael A. El-HeleceRead Journal Click Here
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Page No. 51 to 57
Environmental Pollution Induced By an Aluminium Smelting Plant in Nigeria
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 The extent of pollution of Imo, Utaewa Rivers and Essene Creek being sources of drinking water were assessed due to the smelting activities of the Aluminium Smelter at Ikot Abasi City, Nigeria. Soil and plants samples in the field near the water bodies were equally assessed. The physicochemical parameters investigated on all sampled water bodies were within the WHO and USEPA limits for d...
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Authors Dr. A.R. Ipeaiyeda, N. S. Umo, G. E. OkojevohRead Journal Click Here
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Page No. 59 to 71
Adsorption of Mn(II) ions from wastewater using activated carbon obtained from Birbira (Militia ferruginea) leaves
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 The adsorption of manganese (II) onto activated carbon derived from the leaf an indigenous Ethiopian plant, namely Birbira (Militia ferruginea), was investigated using flame atomic absorption spectrometer. The effects of contact time, adsorbent dose, Mn (II) initial concentration, pH and temperature were investigated.The maximum adsorption occurred after 2 hrs. There was 95.8% of Mn2+ ad...
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Authors Dr. Alemayehu Abebaw Mengistie, T. Siva Rao , A. V. Prasada RaoRead Journal Click Here
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Page No. 5 to 12
Synthesis of poly (ε-caprolactone-co-propylene oxide) by a green catalyst, Maghnite.
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 In the present work the copolymerization of ε-caprolactone (CL) with propylene oxide (PO) uses proton exchanged Montmorillonite clay as initiator is reported. The effects of the amounts of Maghnite -H+ and the temperature on the synthesis of poly (ε-caprolactone-co- propylene oxide) were studied. The copolymer obtained was characterized by 1H-NMR spectroscopy. ...
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Authors Dr. Abdelghani Bouchama , Mohammed Issam Ferrahi and Mohamed Belbachir .Read Journal Click Here
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Page No. 1 to 4
Ionic liquid assisted Synthesis and Characterization of metallicMolybdenum and Molybdenum oxide nanoparticles
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 Nanostructured Mo and MoO3 colloidal dispersions have been obtained reproducibly through reduction of ammonium molybdate by sodium borohydride in ionic liquids. When (NH4)6Mo7O24.4H2O is reduced by NaBH4 in both 1-ethyl-3-methyl imidazolium dicyanamide and 1-butyl-3- methylimidazoliumdicyanamide at 180oC, nanostructured MoO3 formed as the major phase. The XRD pattern confirmed the crysta...
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Authors Dr.Madu, A. N, Ayi, A. Ayi, Njoku, M I, Iwuoha, G. N.Read Journal Click Here
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Page No. 93 to 98
Electrochemical Behaviour of a Copper Electrode in Ammonium Sulfide Solution
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2 The electrochemical behaviour of a copper electrode in ammonium sulphide solutions was studied using cyclic voltammogrammetry and potentiostatic and galvanostatic polarization techniques. The morphology and composition of the layers formed on the copper electrode were studied by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) and X-ray powder diffractometry...
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Authors Dr. I. Zaafarany , Herbert BollerRead Journal Click Here
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Page No. 1 to 7
Computing Group Theory and Character Table of Non Rigid Tetraphenylporphyrin H2(TPP) and Metalloporphyrin MII(TPP)
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1 The studies on symmetry of Metalloporphyrins are very important due to better understanding of their spectra. Also, the non rigid molecule group theory, in which the dynamical symmetry operations are defined as physical operations, is a new field of chemistry. In this paper, by a simple method, we calculate character table for symmetry group of non rigid porphyrin molecule consisting of ...
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Authors M. Eslami Moghadam,Tu00e2u20acu017d. u00e2u20acu017dKarimi, Mu00e2u20acu017d. u00e2u20acu017dFarrokhi Du00e2u20acu017d. u00e2u20acu017dG.u00e2u20acu017dRead Journal Click Here
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Page No. 13 to 19