journal6 ›› 2007, Vol. 28 ›› Issue (2): 100-104.

• Chemistry and chemical engineering • Previous Articles     Next Articles

Synthesis and Characterization of Superfine-MgO Powders by Direct Precipitation Method


  1. (College of Chemistry and Chemical Engineering,Jishou University,Jishou  416000,Hunan China)
  • Online:2007-03-25 Published:2012-06-18

Abstract: Superfine-sized magnesium oxide powders were synthesized by direct precipitation method.The optimum synthesis conditions were investigated by an orthogonal test as follows:the optimum concentration of reactants is MgCl2 1.2 mol/L,NH3·H2O 0.2 mol/L,their volume ratio of reactants [V(MgCl2)∶V(NH3·H2O)] is 1∶10,temperature of reactants is 45 ℃,surfactants is 1.5‰,and time of the reaction is 25 min.The product were characterized by X-ray diffraction (XRD),infrared (IR) spectroscopy,scanning electron microscope (SEM),particle size analysis,and so on.Results showed that the yield of the superfine sized MgO is more than 60% with good dispersion behavior and narrow particles size of about 330 nm.

Key words: superfine magnesium oxide, direct precipitation method, orthogonal test

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