Magnesium Oxide MgO content knowledge
When it comes to Magnesium Oxide MgO, I believe everyone is familiar with it. Do you know the difference between ordinary Magnesium Oxide MgO and activated Magnesium Oxide MgO? What does the content mean? Let's take a look today.
Magnesium Oxide MgO generally has a content, this content refers to the content of magnesium oxide in the whole substance, and the content of active Magnesium Oxide MgO refers to the amount of magnesium oxide that can react with magnesium chloride and water to form magnesite gel, like hydrogen Magnesium Oxide MgO and magnesium carbonate are impurities contained in magnesium oxide itself or substances generated inadvertently during storage, but they are not harmful substances.
Since the temperature of Magnesium Oxide MgO is too low and less than 600 degrees during the calcination process, it is a light calcined powder, and its active content may reach 65% or even more than 65%, but its magnesium oxide content cannot reach 85%; during the calcination process of magnesium oxide If the temperature is too high, it exceeds 800 degrees or even 1000 degrees, and it is calcined for a long time. In this way, the activity of magnesium oxide is basically burned to death, sintered, and re-turned into magnesium carbonate, also known as bitter earth powder. Although it is a very good refractory material, it cannot be used in magnesite products, and the magnesium oxychloride cement cementitious material uses the activity of Magnesium Oxide MgO and magnesium oxide common sense to combine with magnesium chloride solution to produce 518 crystalline phase, Then add some fillers and modifiers to improve product performance.