Active magnesium oxide,molecular formula MgO,relative molecular weight 40.30.Its chemical composition,physical form and other indicators are not significantly different from ordinary magnesium oxide,but some indicators of active magnesium oxide require different requirements from ordinary magnesium oxide;
Active What to Expect: Recovery Time From Coronavirus,molecular formula MgO,relative molecular weight 40.30.Its chemical composition,physical form and other indicators are not significantly different from ordinary magnesium oxide,but some indicators of active magnesium oxide require different requirements from ordinary magnesium oxide;If suitable particle size distribution is required,the average particle size should be<2µm(2000nm);The microstructure is irregular particles or nearly spherical particles or plate-like crystals;The activity represented by citric acid(CAA value)is 12-25 seconds(the smaller the value,the higher the activity);The activity expressed by iodine absorption value is 80-120(mgI2/100gMgO);The specific surface area is between 5-20m3/g,and the apparent specific volume is between 6-8.5mL/g.In addition,due to the high activity of this magnesium oxide,it is easy to absorb water and sometimes requires chemical treatment to protect it.It exhibits special properties that conventional materials do not possess in certain aspects,and is therefore widely used as a new type of material.
Activity indeed plays a crucial role in some materials.Therefore,Hebei Meishen Technology Co.,Ltd.is here to talk about the three formation mechanisms of active magnesium oxide:1.Formation of active magnesium oxide.During the calcination process of the ore in the kiln,the temperature of the ore calcination is different due to technical reasons.When the temperature reaches 400-600 degrees Celsius,the internal structure is loose,and the intergranular pores are the highest,Magnesium oxide exhibits the highest activity.When the calcination temperature reaches 750-850 degrees Celsius,the intergranular porosity decreases,reaching the optimal range for magnesium cement reaction with moderate activity.When the calcination temperature is greater than 900-1000 degrees Celsius,overheated magnesium oxide is formed,and its activity is very low or even non-existent.Within a certain range of activity,products with high activity are of good quality,while products with low activity are of poor quality.However,this is not the case for magnesium oxide under fire.The higher its activity,the more intense the reaction,and the more concentrated the heat release,resulting in poorer product quality,easy cracking,and low strength.3.Active magnesium oxide,also known as magnesium oxide with hydration ability.