... (20 ºC) It is used in the system of metal magnesium, the disinfectant, the freezing salt water, the ceramics, ... important inorganic raw materials, which used in the production of magnesium carbonate, magnesium hydroxide, magnesium oxide, etc. 2) In the metallurgical industry , ... it used for the production of magnesium, chlorine and high purity magnesia etc.3)In other ...