Magnesium oxide is used to determine sulfur pyrite in coal sulfur arsenic in steel, is used as a standard for white pigments. Light magnesia is mainly used as a raw material for preparing ceramics, enamels, magnesia-calcium sand fire crucibles refractory bricks. It is also used as a filler for polishing agents, adhesives, coatings paper, as an accelerator activator for neoprene fluororubber. After mixing with magnesium chloride other solutions, it can be made into magnesium oxide water.
One is that magnesium is burned in pure oxygen to generate magnesium oxide.
It is the heating reaction of magnesium water to produce magnesium hydroxide, then heating dehydration to produce magnesium oxide.
The third is the heating decomposition of magnesium carbonate to obtain magnesium oxide.
The fourth is the reaction of magnesium chloride with ammonia water, filtration, heating dehydration of magnesium hydroxide to generate magnesium oxide.