World Journal of Applied Chemistry

Volume 3, Issue 4, December 2018

  • Optimized Activation of Bentonite for Adsorption of Magnesium and Cadmium from Phosphoric Acid

    Béchir Khoualdia, Mouna Loungou, Elimame Elaloui

    Issue: Volume 3, Issue 4, December 2018
    Pages: 83-91
    Received: 14 June 2018
    Accepted: 4 July 2018
    Published: 26 February 2019
    DOI: 10.11648/j.wjac.20180304.11
    Abstract: The adsorption of magnesium (II) and cadmium (II) from industrial phosphoric acid onto 4 samples of clays: crude (a), purified (b), activated (c) and purified-activated (d) bentonite have been studied using a batch adsorber. The parameters that affect the magnesium (II) and cadmium (II) adsorption, such as bentonite amount, temperature, contact tim... Show More
  • Investigation on Kinetics and Mechanism of Metal Exchange Reaction of Copper (II) Ions and NiL

    Seyed Alireza Hashemi, Rasoul Vafazadeh

    Issue: Volume 3, Issue 4, December 2018
    Pages: 92-98
    Received: 29 October 2018
    Accepted: 28 November 2018
    Published: 13 March 2019
    DOI: 10.11648/j.wjac.20180304.12
    Abstract: In this study, the electron spectrum in UV-Vis region is used to study the kinetics of metal exchange reaction between ion cu2+ and additional concentration of NiL complex. This complex is soluble in dimethyl formamid solution with ionic strength of 0.1M KNO3. The kinetic data of this reaction proves that the metal exchange is a two-step reaction. ... Show More