In this work, two series of poly (ethylene adipate) (PEA) samples with broad and narrow molecular weight distribution (MWD) were prepared by the polymerization between adipic acid and ethylene glycol. An accurate and swift method, one-point method, was used to determine the intri...
Open access
Research Article10.9734/CSJI/2017/35258
Aims: This study was designed to synthesis of Naphthopyrans and xanthenes derivatives in green chemistry approach. Methodology: New 13-aryl-indeno[1,2-b]naphtha[1,2-e]pyran-12(13H)-ones and tetrahydrobenzo[a]xanthen-11-ones were obtained by multi-component reaction of 2-naphthol,...
Open access
Research Article10.9734/CSJI/2017/35380
Studies of the presence of heavy metals were carried out on some vegetables and crops harvested from farms in Ebocha, Egbeda and Igbo-Etche in Rivers State, Nigeria. These farms are located in communities where oil exploration activities are ongoing. The samples were prepared by...
Open access
Research Article10.9734/CSJI/2017/33724
The reaction between amino acids and metal ions has been used as a model for transferring the metallic ions to body tissues. How stable these complexes are formed is our concern. The stability constants of the complexes between L-aspartic acid (Asp) and Co(II), Ni(II), Cu(II), Zn...
Open access
Research Article10.9734/CSJI/2017/34611
Dyes are coloring materials used extensively in common consumer products. A large amount of dye effluent is produced mainly by textile industry. These dye effluents need remediation as they are damaging water bodies and biological organisms including human beings. Polyurethane is...
Open access
Research Article10.9734/CSJI/2017/34270
Analytical study was carried in order to compare the accuracy of three (3) frequently used digestion methods, in the determination of metals in soil and sediments. Samples of soil and sediments were taken from three different locations namely; Bakalchi, Batare, and Anguwan Honna...
Open access
Research Article10.9734/CSJI/2017/34652
The objective of the current work is the elaboration of an alternative method for synthesis of N,N’-dialkylimidazolium dimethyl phosphates – ionic liquids useful both as media and catalysts for condensation reactions in organic synthesis. The proposed method consists of alkylatio...
Open access
Research Article10.9734/CSJI/2017/34482
The adsorbent pore structure significant to enhanced adsorption capacity of Cr (VI) from dilute aqueous solution is evaluated. As reference, low-cost micro-mesoporous activated carbon (AC) of high basicity, mesoporosity centred about 2.4 nm, and effective microporosity centred ab...
Open access
Research Article10.9734/CSJI/2017/34082
Solution casting method was used to prepare nanocellulose reinforced polyvinyl alcohol (PVOH) from Oil palm empty fruit bunches. Different environmental test were used to investigate the biodegradability of the composite in soil and compost as well as in water and acidic solution...
Open access
Research Article10.9734/CSJI/2017/32570
The aim of the investigation was to study the drying characteristics of pineapple at different temperatures of 55, 60, 65, 70 and 75°C with 1.5 m/s constant air velocity. In the present study, the best drying model was selected to describe the drying behaviour, and to develop the...
Open access
Research Article10.9734/CSJI/2017/32746
Garcinia kola (Heckel) and Carica papaya (Linn.) seeds from ripe fruits were investigated for their disinfection and coagulation activity in water. The phytochemical analysis indicated the presence of alkaloid, saponins, flavonoid and tannins in both seeds. Physicochemical analys...
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Research Article10.9734/CSJI/2017/34041
Aims: To investigate chemical activation of low-grade phosphorite from Karakalpakstan, Khojakul by ammonium salts in order to obtain slow-acting phosphate fertilizers. Study Design: The content of the total form N (Nt.) was determined by method Kjeldahl method. Determination of t...
Open access
Research Article10.9734/CSJI/2017/30755
The hydrolysis of starch into glucose by acid and enzyme techniques has recorded higher glucose recovery and optimization of processes, but lacks the fitting of the results into a kinetic linear model. The application of kinetic linearized model effect of temperature on pH and ac...
Open access
Research Article10.9734/CSJI/2017/34116
The concept of Frank’s hypothesis (that is the effect of large tetra alkyl ammonium iodides on the solvent structure, especially in the ion – ion and ion – solvent interactions) was found to be not applicable when water was replaced by one of organic solvent. That is, if study in...
Open access
Research Article10.9734/CSJI/2017/33860
One of the Nigerian minerals (galena ore) within galena deposit region in Torkula, Benue state, was characterized along with its vicinity farmland soils for possible relationships in their geo-physico-chemical compositions. Both classical (titrimetric & gravimetric) and instr...
Open access
Research Article10.9734/CSJI/2017/32740