Heating the chloride electrolyte to a temperature of 70°C ensures the normal codeposition of the components of the CoNiFe alloy as a result of the discharge of single-charged iron and cobalt species (Fe2+Cl-)+ and (Co2+Cl-)+, respectively and double-charged Ni2+ ions at a high ca...
Open access
Research Article10.9734/CSJI/2020/v29i730189
Richard Daris Tegaboue Nguedap, Donald Raoul Tchuifon Tchuifon, Mariam Asseng Conde, Ghislain Mengata Mengounou, Jean Claude Ndom & Anatole Guy Blaise Azebaze·Chemical Science International Journal·2020
This paper carries out the effects of the extraction methods on the quantities and qualities of vegetable oil from Ricinus communis. The same initial quantities of Ricinus communis were used to extract oil by the physical methods, hot and cold hydraulic press, and screw press; an...
Open access
Research Article10.9734/CSJI/2020/v29i630188
Since, hydroxyapatite (HAP) crystal system is hexagonal and its crystalline size in the longitudinal directions of various (a,b,c) axes, which are depending on the thickness of the laminated plate-shaped HAP crystals. Hence, by applying of Scherrer’s equation D100 = Kλ / (β cos )...
Open access
Research Article10.9734/CSJI/2020/v29i630185
For many liquids, the limit of superheat is 0.89 Tc, where Tc = temperature Kelvin at critical point. The rise in the limit of superheat by addition of polymer has a formula, B’, derived by Jennings, and this paper makes use of a pattern to predict the formula for rise in superh...
Open access
Research Article10.9734/CSJI/2020/v29i630184
Samuel Afful, Johannes A. M. Awudza, Shiloh Osae, Michael Tawiah, Ellis Enimil, Beatrice Puplampu & Gladys Adjei Mantey·Chemical Science International Journal·2020
Extractable organochlorine (EOC) and bound organochlorine (BOC) compositions in sediments from Lake Bosomtwi have been determined with instrumental neutron activation technique. Within the limit of experimental errors, the precision and accuracy of the method for the determinatio...
Open access
Research Article10.9734/CSJI/2020/v29i630183
Levels of toxins has increased in water due to the spurge of industries. Nickel (II) is mostly used in industries because of its anticorrosion behaviour. Nickel (II) is present in the effluent of electroplating, plastics manufacturing, fertilizers and mining industries. It causes...
Open access
Research Article10.9734/CSJI/2020/v29i630182
A comparative theoretical study of some physicochemical properties of R and S enantiomers of ibuprofen, ketoprofen and flurbiprofen is undertaken in order to understand their reactivity. To do this, DFT and TD-DFT methods at the B3LYP/6-311G(d,p) level theory are used. The partit...
Open access
Research Article10.9734/CSJI/2020/v29i530180
Matured flamboyant pods (FBP) activated with ZnCl2 were used for batch adsorption of Bromophenol blue (BPB) dye under the effects of concentration (10-200 ppm), contact time (20-300 min), biosorbent dosage (20-120 mg) and particle size (300-850 µm). The data obtained were fitted...
Open access
Research Article10.9734/CSJI/2020/v29i530179
The present study has been carried out to investigate the mechanisms of sol–gel reactions using TEOS as precursor in the presence of acid or base catalyst. The gels were prepared by hydrolysis of TEOS using hydrochloride acid or ammonium hydroxide catalyst. The obtained gels were...
Open access
Research Article10.9734/CSJI/2020/v29i530178
The present work aimed at mitigating the level of copper ions (Cu++) by adsorption in aqueous solution using activated carbon powder (AC) and biosorbent (BS) from the Indian jujube seed hulls. The AC and BS were prepared from the Indian jujube seed hulls and characterized usin...
Open access
Research Article10.9734/CSJI/2020/v29i530177
Donald Raoul Tchuifon Tchuifon, Serges Bruno Lemoupi Ngomade, George Nche Ndifor-Angwafor, Paul Alain Nanssou Kouteu, Tchoumboue Nsah-Ko, Richard Daris Tagaboue Nguedap, Idris-Hermann Tiotsop Kuete, Aurelien Bopda & Solomon Gabche Anagho·Chemical Science International Journal·2020
Waste cooking oils are an agro-food waste with adverse effects on the health of living organisms and the environment. The main objective of this work is to valorize waste cooking oil for the synthesis and physicochemical characterization of biodiesel. The method used is based on...
Open access
Research Article10.9734/CSJI/2020/v29i530176
Aims: To determine the spatial distribution pattern of anthropogenic induced gaseous and particulate pollutants in air samples around major roads within Uyo Metropolis, Southern Nigeria. Also, to assess the response in terms of changes in concentrations of some non-enzymatic bioc...
Open access
Research Article10.9734/CSJI/2020/v29i430175
Classical nucleation theory predicts the limit of superheat of liquids quite well. To come up with an equation for the limit of superheat of polymer solutions, the lattice model for polymer solutions was used to give the surface tension of polymer solutions. A formula for bubble...
Open access
Research Article10.9734/CSJI/2020/v29i430174
Marius Trésor Dable, Mahama Ouattara, Edgard Valéry Adjogoua, Konan Dominique Tano, Akissi Jeanne Koffi, Nkoua Badzi Cynthia & William Yavo·Chemical Science International Journal·2020
Malaria continues to kill thousands of people worldwide. People South of the Sahara are paying the heaviest price for this epidemic. In addition, the resistance of Plasmodium falciparum which spreads to artemisinin derivatives becomes worrying. To respond to this emergency, the s...
Open access
Research Article10.9734/CSJI/2020/v29i430172
In this work a new and simple polarographic method has been established for the determination of trace elements present in tea. After digestion with acids, tea samples were analyzed using various electrolytes such as acetate and ammonia at different pH values in the presence or a...
Open access
Research Article10.9734/CSJI/2020/v29i430171