Science Journal of Chemistry

Volume 9, Issue 5, October 2021

  • Synthesis and Spectrophotometric Properties of Sodium Metal Carboxylates

    Iortyom Susan Doofan, Kukwa Donald, Iornumbe Esther Nguumbur, Agbidye Isaac Gbaa, Ijuo Godwin

    Issue: Volume 9, Issue 5, October 2021
    Pages: 113-120
    Received: Jul. 28, 2021
    Accepted: Aug. 18, 2021
    Published: Sep. 06, 2021
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    Abstract: While metal carboxylates are by no means rare or inaccessible, complete characterization with notable exception of acetates is largely neglected hence a deficiency within the carboxylate literature giving rise to discrepancies within the characterization data available thus, spectroscopic properties of synthesized sodium metal carboxylates of aceti... Show More
  • Residual Elastic Stress in Historical Coins as a Criterion for Authentication

    Alexander Joseph Kossolapov, Ksenia Sergeevna Chugunova

    Issue: Volume 9, Issue 5, October 2021
    Pages: 121-128
    Received: Aug. 20, 2021
    Accepted: Sep. 04, 2021
    Published: Sep. 10, 2021
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    Abstract: Authentication of coins is frequently presenting complicated problem in numismatics practice. Metal composition only may not be enough to identify forgeries, notably when one deals with noble metals – silver, gold or electron. Isotopic ratios, providing in certain cases information regarding metallic ore source (geographical provenance), require a ... Show More