It is widely used in the manufacture of metallurgy, smelting, high-grade magnesia brick,
There are many kinds of flame retardant, which can be divided into organic flame r
Weigh the sample about 400mg which was dried at 105 ℃ for 2 hours, and transfer it into the conical flask. Add 25.
① Magnesium oxide is a raw material for magnesium smelting, which exists in nature in the form of square magnesite.
According to the different raw materials, it can be divided into the following categories: first,