Archive for July 21st, 2009

Spinel (MgAl2O4) Powder Preparation

Tuesday, July 21st, 2009

Co precipitation Technique
In this method first mixture of Magnesium Nitrate or Magnesium chloride and Aluminium Nitrate are mixed in a ratio of 1:2 and 30% ammonium hydroxide is added to increase the pH of the system to level of pH 10 at a temperature of 60 to 80oC. In this stage reaction takes place […]