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1. The content and activity of magnesium oxide are directly proportional within a certain range, but there is no such strict or reliable proportional relationship; 85 magnesium oxide
2. If you think that "going beyond this range becomes inversely proportional" is a more serious mistake!
3. The current magnesium oxide is misunderstood by some people as light calcined powder, which is also a serious mistake. It should be said that the main component of light calcined powder is magnesium oxide, which also contains impurities such as MgCO3, Mg (OH) 2, Fe2O3, Al2O3, SiO2, etc. It is a serious mistake to describe magnesium oxide as lightly burned powder.
