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 )...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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Research Article10.9734/CSJI/2020/v29i430175