African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007

AJPAC Articles in press

Article in Press

Effects Of Chemical Modification On Functional And Physical Properties Of African Star Apple Kernel (Chrysophyllum Albidnum) Starch

Starch isolated from Chrysophyllum albidnum (African star apple) was subjected to modification by acetylation, carboxymethylation and succinylation process. Chemical modifications effect on functional properties as well as physiochemical parameters of starch was analysed. The percentage yield of native starch was 73.22±0.93% however the value increased after modifications. The proximate determination of the non-starch...

Author(s):Ibikunle Adeola Ahmed, Sanyaolu Nurudeen Olanrewaju, Yussuf Sodiq Tolulope, Ogunneye Adeyemi

Article in Press

Computational adsorption and density functional theory (DFT) studies on the corrosion inhibition potentials of some phenyl-urea derivatives

The inhibition performance of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-phenyl-methyl]-urea and [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea were investigated as corrosion inhibitors using density functional theory (DFT) at the B3LYP/6-31+ G(d,p) level of theory. The calculated quantum chemical parameters correlated to the inhibition of efficiency. The molecular descriptors have been analysed...

Author(s):Department of Chemistry, Ahmadu Bello University Zaria, Kaduna State, Nigeria.

Article in Press

Fuel oil as an anthropogenic source of iron, manganese, chromium copper and arsenic at Kingtom Power Plant and environs

People all over the world suffer from certain illnesses such as skin disease, cancer as well as liver, kidney and skin damage. Some of these diseases are believed to be associated with certain trace metal. Trace metals are present in plant and animal cells and tissues as they are necessary part of nutrition and physiology. Ingestion of, or exposure to, excess quantities of these metals is often toxic. However, insufficient...

Author(s):Chemistry Department, Fourah Bay College, University of Sierra Leone, Sierra Leone.

Article in Press

Comparative study of oxidation, acetylation and boric acid treatment with various concentrations of NaOH/alcohol on cold water solubility (CWS), amylopectin and amylose content of starches from cassava, potato and corn

The effect of oxidation, acetylation and boric acid treatment and varying concentrations (30, 40 and 50%) of alcohol-alkaline (NaOH/alcohol) modifications on the cold water solubility (CWS), amylopectin and amylose content of starches extracted from cassava, potato and corn were evaluated and compared. The studies were carried out using the determination of cold water solubility (CWS), amylose-amylopectin content and light...

Author(s):Department of Biochemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.

Article in Press

Effect of mineral systems injected with pyrite on copper and zinc removal from aqueous solution part 1

Mineral systems of kaolinite, montmorillonite, kaolinite and their mixtures injected with pyrite were investigated for copper and zinc removal. This study was related to simulated contaminated waters. Reactivity and removal kinetics were studied at room temperature (23 ± 2°C). The results of the empirical model revealed that, proton coefficient of mineral systems exhibited complex behavior. Kinetic model revealed that...

Author(s):Faculty of Science, Niger Delta University, Wilberforce Island, Nigeria.

Article in Press

Adsorption of chromium by brewers spent grain -g- poly (acrylic acid-co-acryl amide) from electroplating effluent

Toxic metal ions have lethal effects on all forms of life and these metal ions could enter the food chain when untreated waste effluents are discharged into the environment. In recent years, the use of low-cost adsorbent materials has been widely investigated in search of replacement for the costly methods that are currently used for removing these toxic metal ions from waste streams. In this study, the remediation of...

Author(s):Materials Division, Federal Institute of Industrial Research, Oshodi (FIIRO) Lagos State, Nigeria. Chemistry Department, Babcock University, Ilishan-Remo, Ogun State, Nigeria.

Article in Press

Study of physico-chemical and thermodynamic parameters of potassium iodide in Oil-DMF solvent

The physico-chemical properties namely viscosity (η), surface tension (γ), conductance (Κ), molar conductance (μ), and thermodynamic parameters like enthalpy change of activation (ΔH*), entropy change of activation (ΔS*), free energy change of activation (ΔG*), molar heat capacity change at constant volume (ΔCv) and molar heat capacity change at constant pressure (ΔCp) of potassium iodide solutions in varying compositions...

Author(s):Department of Chemistry, University of Karachi, Karachi-, Pakistan

Page 1 of 1, showing 7 records out of 7 total, starting on record 1, ending on 7

< previousnext >