TGA/DTG analysis of the oven-dried magnesium hydroxide were investigated by raising its temperature at the rate of 5
°C/min in air up to 800 °C to analyze its thermal decomposition behavior. Figure 1 shows the TGA/DTG curves of the as-prepared magnesium hydroxide. Only one main stage of mass loss was observed. The strong peak observed at 359.59
°C in the derivative thermogram can be attributed to the de- composition of Mg(OH)2 to MgO. The observed mass loss at
360 °C was 31.3%, which was in good agreement with the nominal value for the Mg(OH)2 to MgO transformation (30.8%).