Quality standards and testing methods of magnesium oxide nanoparticles

Quality standards
Besides Hebei Meishen chemical technology Group Co.,Ltd, there is no large-scale industrialized manufacturers of magnesium oxide nanoparticles. So the quality standards have not come on yet. Generally speaking, apart from the obvious size requirements, other indicators are associated with the specific uses. For example, the index of high-purity nanometer magnesium oxide is similar to the corresponding level of chemical reagent.

Testing methods
Particle size can be determined by transmission electron microscope or high-power scanning electron microscope, by dolomite carbonization method can obtain SEM and TEM photo. You can also use X-ray diffraction to determine the powder diffraction peak, calculate the size of finished product through diffraction data. But what we should pay attention to is that the original particle size is calculated by using X-ray diffraction, which is known as primary particle size. While using an electron microscope observations often have secondary particle size composition, that is easily observed aggregation of particle size. Magnesium oxide surface tension is relatively large, sometimes aggregation is more serious, that is the first issue which should be tackled in the production process, and it also is one of the difficulties in industrial production. At present, only Hebei Meishen chemical technology Group Co.,Ltd can solve the problem well.

Environmental protection
The production process of nanometer magnesium oxide is similar to industrial grade magnesium oxide, just different in the requirements of different process condition, such as more precise control and higher demands. So in the environmental protection and industrial hygiene, the requirements are the same.