Magnesium Oxide

The main purpose

Magnesium oxide is used to measure sulfur and pyrite in coal and sulfur and arsenic in steel. Used as a standard for white pigments. Light magnesium oxide is mainly used as a raw material for preparing ceramics, enamels, refractory crucibles and refractory bricks. It is also used as a polishing agent, adhesive, coating, and paper filler, as an accelerator and activator for neoprene and fluororubber. After mixing with magnesium chloride and other solutions, it can be made into magnesium oxide water. Used in medicine as an antacid and laxative, for hyperacidity of the stomach and duodenal ulcer. Used in the chemical industry as a catalyst and a raw material for the manufacture of magnesium salts. It is also used in the manufacture of glass, dyed meal, phenolic plastic, etc. Heavy magnesia is used in the rice milling industry for firing, grinding and half-drum. The construction industry is used to manufacture artificial chemical floors, artificial marble heat-proof panels and sound-proof panels, and the plastic industry is used as filler. It can also be used to produce other magnesium salts.

One of the main uses of magnesium oxide is as a flame retardant. Traditional flame retardant materials are widely used in flame retardant mixtures composed of halogen-containing polymers or halogen-containing flame retardants. However, once a fire occurs, due to thermal decomposition and combustion, a large amount of smoke and toxic corrosive gases will be produced, which will hinder fire fighting and personnel evacuation, and corrode instruments and equipment. In particular, people have found that more than 80% of fatalities in fires are caused by dense smoke and toxic gases produced by materials. Therefore, in addition to flame retardant efficiency, low smoke and low toxicity are also indispensable indicators for flame retardants. The development of China's flame retardant industry is extremely unbalanced. The proportion of chlorinated flame retardants is relatively high, ranking first among flame retardants, among which chlorinated paraffins occupy a monopoly position. However, chlorine-based flame retardants release toxic gases when they act, which is far from the non-toxic and high-efficiency pursued by modern life. Therefore, in order to comply with the development trend of low smoke, low toxicity and pollution-free flame retardants in the world, the development, production and application of magnesium oxide flame retardants are imperative.