Oils were extracted from Moringa oleifera and Citrullus colocythis L. (melon) seeds, using soxhlet extractor with n-hexane as solvent. The oil yield were; 51.00% and 50.87% for melon and moringa respectively. The oils physicochemical parameters such as moisture content, density a...
Open access
Research Article10.9734/IRJPAC/2013/4425
Ethylene Diamine Tetra Acetic acid (EDTA) doped copper sulphate penta hydrate were grown for five different parent-dopant combinations using slow solvent evaporation method at 300 K and good optical quality crystals were harvested for minimum dopant ratio. The single crystal X-ra...
Open access
Research Article10.9734/IRJPAC/2013/5299
The determination of optimum catalyst concentration for biodiesel yield from Coconut (Cocos nucifera) oil was studied. The oil was transesterified using potassium methoxide as catalyst to obtain the crude biodiesel. The reaction was carried out at different catalyst concentration...
Open access
Research Article10.9734/IRJPAC/2013/3761
The mineralogical characterization was carried out to determine the major and minor constituents minerals present in the coastal sediment collected in and around Nagapattinum district Tamilnadu, India by FT-IR spectroscopy. The minerals were identified with the help of available...
Open access
Research Article10.9734/IRJPAC/2013/4265
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 [...
Open access
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...
Open access
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...
Open access
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...
Open access
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...
Open access
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...
Open access
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...
Open access
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(...
Open access
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...
Open access
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...
Open access
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-...
Open access
Research Article10.9734/IRJPAC/2013/4526