The synthesis of 4-phenylazo phenol by coupling anthocyanins extracted from Delonix regia flowers with diazotised aniline is presented in this paper. Also reported here is the reduction of 4-phenylazo phenol to yield 4-aminophenol and coupling of 4-aminophenol to phenol and 2-nap...
Open access
Research Article10.9734/CSJI/2017/35020
Response surface methodology was used to model the effect of temperature, NaCl concentration and pH on the production of protein from Mucuna pruriens seeds. The analysis of response surface graphs showed that the optimal parameters correspond to a temperature of 27°C, a concentrat...
Open access
Research Article10.9734/CSJI/2017/35376
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