Magnesium nitride is an inorganic compound composed of nitrogen and magnesium, with a molecular formula of Mg₃N₂ and a molecular weight of 100.9494. Belongs to the cubic crystal system. It is yellow-green powder under pure magnesium nitride at room temperature, but magnesium nitride containing a part of magnesium oxide impurities is off-white. Magnesium nitride, like many metal nitrides, reacts with water to produce ammonia. To prepare magnesium nitride, the magnesium belt can be burned in nitrogen. Often used as a catalyst.

 
The physical properties of magnesium nitride
Magnesium nitride is an inorganic compound composed of nitrogen and magnesium, a cubic crystal system. It is yellow-green powder under pure magnesium nitride at room temperature, but magnesium nitride containing a part of magnesium oxide impurities is off-white. It is soluble in acid, slightly soluble in ethanol and ether.
 
The chemical properties of magnesium nitride
Magnesium nitride, like many metal nitrides, reacts with water to produce ammonia.
Reacts with acids or water-containing non-metal oxides to produce ammonium and magnesium salts.
 
The main use of magnesium nitride
1. It is used as a catalyst when preparing nitrides of other elements with high hardness, high thermal conductivity, corrosion resistance, wear resistance, and high-temperature resistance. When the cubic boron nitride was successfully synthesized for the first time, the catalyst used was magnesium nitride;
2. Additives used in high-strength steel smelting. Magnesium nitride (Mg3N2) replaces desulfurized magnesium in construction steel smelting, which is beneficial to improve the density, strength, tensile strength, and endurance of steel. In addition, the use of magnesium nitride (Mg3N2) for desulfurization can reduce other additives in an appropriate amount, thereby helping to reduce the production cost of construction steel;
3. Preparation of special ceramic materials;
4. Foaming agent for manufacturing special alloys;
5. Used to manufacture special glass;
6. Catalytic polymer cross-linking;
7. Recycling of nuclear waste;
8. Used as a catalyst material for synthetic diamond synthesis and cubic boron nitride.
 
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