Science Journal of Chemistry

Volume 8, Issue 3, June 2020

  • The Geo-accumulation Index of Some Heavy Metals in the Roadsides Soils of Onitsha South Local Government Area Anambra State, Nigeria

    Ochiagha K. E., Okoye P. A. C., Eboagu N. C.

    Issue: Volume 8, Issue 3, June 2020
    Pages: 42-47
    Received: 11 February 2020
    Accepted: 1 April 2020
    Published: 15 May 2020
    Abstract: Heavy metals have a great ecological significance due to their toxicity and accumulative behaviour. Monitoring of their concentrations in the soils of our environment is very important. The geo-accumulation index (Igeo) in 11 stations in Onitsha South Local Government Area, (i.e Modeebelu Avenue, Ozomagana, Zik Avenue, Port Harcourt Road, Oguta Roa... Show More
  • Antisalmonellal Activities of Extracts, Fractions, Compounds and Semi-synthetic Flavonoid Derivatives from Tristemma hirtum P. Beauv (Melastomataceae)

    Joseph Nandjou Kenfack, David Tsafack Ngoudjou, Beaudelaire Kemvoufo Ponou, Jonas Kühlborn, Borice Tapondjou Tsafack, Rémy Bertrand Teponno, Till Opatz, Luciano Barboni, Donatien Gatsing, Léon Azefack Tapondjou

    Issue: Volume 8, Issue 3, June 2020
    Pages: 48-58
    Received: 31 March 2020
    Accepted: 24 April 2020
    Published: 27 May 2020
    Abstract: The development and spread of resistance to currently available antibiotics is a major drawback in the treatment of microbial infections. Salmonellosis for example remains among the most common cause of morbidity and mortality in developing countries. This study aimed to evaluate the antisalmonellal potential of extracts, fractions, isolated compou... Show More
  • Synthesis and Characterization of Bioactive Cadmium (II) Complexes Derived from 4-Benzyloxybenzoylhydrazine with Different Aromatic Aldehydes

    Rezaul Haque Ansary, Jaber Al Mamun, Md. Belayet Hossain Howlader

    Issue: Volume 8, Issue 3, June 2020
    Pages: 59-65
    Received: 6 May 2020
    Accepted: 28 May 2020
    Published: 17 June 2020
    Abstract: The reactions of the ligand precursor 4-benzyloxybenzoylhydrazine (2) with cinnamaldehyde, salicylaldehyde, 2,4-dimethoxybenzaldehyde, 4-N,N dimethylaminobenzaldehyde, 4-methoxybenzaldehyde formed the ligands C6H5CH2OC6H4CONHN=CHR, where R=C6H5CH=CH, (3); C6H4(OH), (4); C6H3(OCH3)2, (5); C6H4N(CH3)2, (6); C6H4(OCH3), (7), respectively. The ligand p... Show More
  • Synthesis and Characterization of Vinyl Acetate Grafted onto Industrial Cellulose

    Chiagozie Michael Ekwunife, Vincent Ishmael Egbulefu Ajiwe, Collins Chibuzor Odidika, Uchenna Emmanuel Amalu

    Issue: Volume 8, Issue 3, June 2020
    Pages: 66-71
    Received: 21 May 2020
    Accepted: 8 June 2020
    Published: 23 June 2020
    Abstract: This study was aimed at investigating the synthesis and characterization of vinyl acetate grafted on Industrial Cellulose. Vinyl acetate monomer was grafted onto Industrial cellulose using benzoyl peroxide as initiator at varied temperatures. The Industrial cellulose-g-poly(vinyl acetate) was orange in colour. The effect of initiator concentration,... Show More
  • Study of Ellipsometry of Swelling of Styrene-acrylic Bentonite-containing Copolymer Composites

    Ganiyev Bakhtiyor Shukurullayevich

    Issue: Volume 8, Issue 3, June 2020
    Pages: 72-76
    Received: 25 March 2020
    Accepted: 10 June 2020
    Published: 28 June 2020
    Abstract: In this work, the study of copolymer acrylic films was carried out on a laser photoelectric ellipsometer LEF-ZM-1. In this work, we consider a chemical sensor based on an integrated optical sensing element, propose structural schemes of IOCS, as well as conduct studies on a simulation model and assess the potential for detecting changes in the conc... Show More