STUDIES OF REACTION MECHANISM AND PHYSICAL NATURE OF LIGHT-WEIGHT BASIC MAGNESIUM CARBONATE

Authors

  • Abdul Khalique Product Development Section, Mineral & Metallurgy Research Centre, PCSIR Laboratories Complex, Lahore - 54600, Pakistan
  • Adnan Akram Product Development Section, Mineral & Metallurgy Research Centre, PCSIR Laboratories Complex, Lahore - 54600, Pakistan
  • Nusrat Hamid Product Development Section, Mineral & Metallurgy Research Centre, PCSIR Laboratories Complex, Lahore - 54600, Pakistan
  • Izharul Haque Khan Product Development Section, Mineral & Metallurgy Research Centre, PCSIR Laboratories Complex, Lahore - 54600, Pakistan

Keywords:

Reaction mechanism, Light - weight magnesium carbonate, Effect of sodium bicarbonate.

Abstract

The reaction mechanism of light - weight magnesium carbonate has been studied and concluded that it is based upon formation of colloidal magnesium hydroxide and adsorption of HCO3 ions on magnesium hydroxide surface under optimum conditions. Precipitation, carried out in the presence of sodium bicarbonate over a concentration range of 1M to 0.01M, is a continuous function of the carbon dioxide remaining in the solution. Temperature between 70°C and 80°C, stirring speed of 900 rpm, gradual addition of magnesium sulfate solution and mass ratio of soda ash to sodium bicarbonate (3:2) were found to be the optimum conditions for obtaining light - weight magnesium carbonate.

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Published

2004-04-26

How to Cite

Khalique, A., Akram, A., Hamid, N., & Khan, I. H. (2004). STUDIES OF REACTION MECHANISM AND PHYSICAL NATURE OF LIGHT-WEIGHT BASIC MAGNESIUM CARBONATE. Biological Sciences - PJSIR, 47(2), 96–98. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/1471

Issue

Vol. 47 No. 2 (2004): Pakistan Journal of Scientific and Industrial Research

Section

Articles