In order to find an efficient catalytic system for Beckmann rearrangement of ketoximes, cyanuric chloride and Lewis acids were screened, and the cyanuric chloride /manganese chloride tetrahydrate system with good catalytic effect has been discovered. Using 2 mol% cyanuric chlorid...
Open access
Research Article10.9734/irjpac/2019/v19i230108
Schiff base derived from salicylaldehyde and 2,4-dinitrophenylhydrazine was synthesized. Its Mn(II) and Fe(II) complexes (MnL2 and FeL2) were synthesized by refluxing the metal (II) chlorides with the Schiff base. All the compounds were characterized by melting point/decompositio...
Open access
Research Article10.9734/irjpac/2019/v19i230107
Aim: The aim of the study was to determine concentration of heavy metals in the soil and edible vegetables planted consumed Yala Urban Area of Cross River State, Nigeria, ascertained the level of metals contamination and the possible health risk or implication. Sampling: Forty ei...
Open access
Research Article10.9734/irjpac/2019/v19i230105
“Biochar” is a relatively new term, yet it is not a new substance. Biochar, product of thermal decomposition or incomplete combustion of biomass or bio-wastes under limited oxygen supply, are fine-grained highly porous charcoal substances that are distinguished from other charcoa...
Open access
Research Article10.9734/irjpac/2019/v19i230106
Foxtail millet has been consumed similar to rice from times immemorial and many products like soups, vermicelli, pasta and malt mixes were done in recent times to increase the nutrient content of various food products. Due to climate changes, millet usage is increasing nowadays a...
Open access
Research Article10.9734/irjpac/2019/v19i230104
Phosphorus (P) availability is generally low in Calcareous soils due to its association with soil constituents forming other P compounds that are of low solubility and availability for plant uptake. In particular, phosphorus use efficiency (PUE) in Saudi Arabia agricultural soils...
Open access
Research Article10.9734/irjpac/2019/v19i130103
The quality of groundwater and surface water bodies have been analyzed globally and showed that 23% of primary drinking water sources have more than permissible limits of pollutants’ concentration. A major part of the world suffers from high concentrations of Nitrate, Fluoride an...
Open access
Research Article10.9734/irjpac/2019/v19i130102
Aims: This study investigates the use of sawdust from 3 hardwood species as low-cost adsorbent for the removal of copper from contaminated water. Study Design: The experimental design used for this study was 3 x 2 x 4 factorial experiment; the different sawdust species, two basel...
Open access
Research Article10.9734/irjpac/2019/v19i130101
Bis salicylaldehyde ethylenediamine Schiff base (Salen) and its complexes with three metal ions (Co2+, Ni2+, Zn2+) were prepared, and characterized by infrared spectroscopy(IR). Using air as oxygen source, the optimum reaction conditions for the catalytic oxidation of 0.05 mol be...
Open access
Research Article10.9734/irjpac/2019/v19i130100
Dried and powdered leaves of Albizia chevalieri were extracted using ethanol. The extract was fractionated to give methanol, chloroform and pet-ether. The four extracts obtained; ethanol, chloroform, methanol and pet-ether were evaluated for antioxidant activity using 2,2-dipheny...
Open access
Research Article10.9734/irjpac/2019/v19i130099