It is flammable and explosive,and brings high temperature andglaring light when burning.Therefore,Mg powder is wisely used insuch scientific area as war industry and aviation industry. Thechemical performance of Mg is very active,which is mostly used inmetallurgical industry.Mg powder can sever as desulfurizer orcleaning agent for steel-making industry and casting of non-ferrousmetals,and reducer for production of rare metal. In chemicalindustry,Mg powder can be used as dehydrant for organic compound orto directly make organic compound of Mg.In recent years,Mg powderhas been mostly used inspaying,coatingantti-corrosion,monocrystallinesilicon,polycrystalline silicon ,and cating of metallurgical powderas well.