believed that the amount of weight loss
depends on type of micro-grain array of the sample and assumed
that if the micro-grain has a face centred array of uniform spheres,
it will have certain values of diameter and molar volumes that
control the amount of micro-grain and percentage of weight loss
that can be experienced by the sample. Thus, it can be observed that
most of the TG curves of calcination illustrated that the sample left
with 55% of the original weight which represents the decomposed
sample.