The Kinetics investigation of uncatalysed oxidation of D-(+) galactose by cerium (IV) have been studied in an acidic medium in the temperature range 308-328K. The reaction has been found to be first order with respect to D-(+) galactose in an uncatalysed reaction. The effect of [...
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Research Article10.9734/IRJPAC/2013/3877
Aims: The aim of this study was to determine the thermodynamics of the solvation of CaSO4 in mixed DMF-H2O at 301.15 K. The Gibbs free energies as very important thermodynamic property were evaluated for CaSO4 in mixed dimethylformamide (DMF)-H2O solvents at 301.15 K from the exp...
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Research Article10.9734/IRJPAC/2013/4344
The inhibition effect of Plumeria rubra (PR) extracts on the corrosion of mild steel in industrial water medium was studied by mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The results show that the protection efficiency increas...
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Research Article10.9734/IRJPAC/2013/5397
A simple solid state metathetic synthesis has been developed for the preparation of BaSnO3 and BaZrO3 making use of BaCl2 along with Na2SnO3 and K2[ZrO(C2O4)2].3H2O as precursors. Phase pure compounds in each case were obtained at lower temperatures than those reported in litera...
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Research Article10.9734/IRJPAC/2013/4147
To acquire a deeper understanding of surface chemistry of fly ash along with thermal activation, the states of mineral phases, water and –OH groups on silica are studied in fly ash at different calcination temperatures by DR/FTIR spectroscopic technique. DR/FTIR spectroscopy allo...
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Research Article10.9734/IRJPAC/2013/4287
Aim: To develop and validate a selective, sensitive and simple RP-HPLC method for the determination of ergotamine tartrate (ET) in pharmaceutical dosage forms. Study Design: All variables were studied to optimize the chromatographic conditions. Place and Duration of Study: Depart...
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Research Article10.9734/IRJPAC/2013/4528
Aims: To determine the effect of the hydrophobic forces involved in the interaction of cellulase (endo-β-1,4-glucanase from Aspergillus niger), and cationic surfactant n-alkyl trimethyl ammonium bromides (CnTAB), with varying chain lengths (n = 10, 12, 14, 16, 18), steady-state f...
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Research Article10.9734/IRJPAC/2013/4229
A Tolterodine tartrate (TLD) (R)-N, N-diisopropyl-3-(2-hydroxy-5-ethylphenyl)-3-phenylpropanamine L-hydrogen tartrate reagent. Its molecular formula and molecular weight are C26H37NO7 and 475.6 respectively, was employed for the sensitive spectrophotometric determination of gold(...
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Research Article10.9734/IRJPAC/2013/3541
Poly vinyl alcohol (PVA) / TiO2 composites were prepared by sol gel method. The structural, micro structural and the dielectric properties of the composites were studied using X- ray diffraction( XRD), Scanning Electron Microscopy (SEM) and Hioki 3522-50 LCR Meter respectively. T...
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Research Article10.9734/IRJPAC/2013/3922
Schiff’s bases containing heterocyclic scaffolds have been known to possess a wide range of biological and pharmacological activities for a long time. In recent years, they have gained significant interest in the area of drug research and development owing to their broad bioactiv...
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Research Article10.9734/IRJPAC/2013/3996
Present work describes the synthesis of coumarin Mannich bases 4-7 by the application of Mannich reaction on 7-hydroxy-4-methyl coumarin 3 using conventional as well as microwave technology to compare the feasibility, reaction time and yield of the product. For this, 7-hydroxy-4-...
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Research Article10.9734/IRJPAC/2013/4526
Aim: To develop and optimize two spectrophotometric methods for the determination of raloxifene hydrochloride in pure and dosage forms; using Tetracyanoquinodimethane (TCNQ) and Folin Ciocalteu’s reagents. Study Design: Charge transfer reaction and chromogen formation. Place of S...
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Research Article10.9734/IRJPAC/2013/4588
Aims: To identify the specific routes of arsenic contamination in the soil at coal fired industrial area by using Chemical Mass Balance (CMB8). Study Design: The prime objectives of the study are: 1. Measuring the chemical composition of soil at different distance from the in...
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Research Article10.9734/IRJPAC/2013/3742
The aim of this paper is to assess the full potentialities of spectroscopy techniques in the art work investigation and to explore the capabilities in the determination of the chemical and mineralogical composition of ancient pottery excavated from Kottapalayam village, Karur dis...
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Research Article10.9734/IRJPAC/2013/4280
Luminescence spectral changes of solid EuCl3·6H2O in the presence of N, N–dimethylformamide (DMF) and methanol (MeOH) vapors were studied. Difference spectra and 2 dimensional correlation spectra obtained from luminescence spectra were used to determine base components of the lum...
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Research Article10.9734/IRJPAC/2013/3442