What is Magnesium Nitride

What is Magnesium Nitride?

Magnesium Nitride, is an inorganic compound having the chemical formula Mg3N2. It's part the cubic crystal system. At normal temperature, pure nutride is a color of yellow and green with some impurities of magnesium oxide is grayish white.

The Molar mass of magnesium nitride is 100.95g/mol. Its density 2.712g/cm3. Magnesium nitride dissolves completely in water and acid, however it is partially dissolved by alcohol and ethanol.

The melting temperature of magnesium nitride lies at 1500 degrees. Magnesium nitride, like many metal nitrides water and produces ammonia. It is commonly used as a catalyst. It reacts with acid or nonmetallic oxides , forming ammonium salts and magnesium salts.

Magnesium Nitride is a natural ceramic nature. Magnesium Nitride has a high corrosion resistance and dramatically improves production efficiency. Magnesium nitride has also high thermal conductivity, as well as high corrosion resistance and resistance to temperature. Magnesium Nitride is of additional significance due to its use as a catalyst in the formation of boron.

What Do You Use Magnesium Nitride For?

1. Use as a catalyst to prepare the nitride of other elements that have high hardness and high thermal conductivity. It also provides corrosion resistance, wear resistance and high temperature resistance. In the first successful synthesis of cubic boron nitride, the catalyst was magnesium nitride.

2. Used for high strength steel for smelting. Magnesium nitride (Mg3N2) replaces desulphurized magnesium in construction melts, which is helpful in increasing the density strength tension, and bearing strength of steel. In addition, using of magnesium Nitride (Mg3N2) desulfurizationcould lower the amount of other additives, thereby helping to lower the cost of production for construction steel.

3. Used to prepare special ceramic materials;

4. For the manufacture of special alloy foaming agent;

5. Special glass is made for the purpose of manufacturing;

6. For crosslinking catalytically produced polymers

7. For the recycling of radioactive waste

How to Produce Magnesium Nitride?

Presently, the primary preparation methods of magnesium nitride comprises direct reaction method of magnesium powder with nitrogen, method of reaction of magnesium with nitrogen using nitrogen plasma flow and the magnesium coil explosion method in nitrogen atmosphere low pressure chemical gas supplementing method for product, self-propagating high temperature synthesis technique, nano magnesium nitride synthesis technique, etc.

Recently, G. Soto et al. produced amorphous magnesium-nitride films with different Mg:N ratios on Si substrates in a nitrogen-based molecular environment by Laser pulse deposition. These techniques limit the industrial production of these films due to high cost, long process with complex equipment, or low yields for magnesium oxide.

While the direct reaction of magnesium powder with nitrogen holds significant industrial potential, the making of magnesium nitride powder needs more heat and a longer processing time. The shape of the particles are not ideal and easy to agglomerate that's why they don't meet the requirements for industrial quality. The decomposition of NH3 may be accomplished into N- which is a broken bond quicker than N2 and the decomposed H2 could stop the formation of MgO, so ammonia gas can be used as a nitrogen source. Chen Faqin et al. used liquid ammonia to serve as nitrogen source for the preparation of magnesium nitride material by direct the nitriding process of magnesium powder. The following conclusions can be drawn: Using thermodynamic analyses, liquid ammonia could react with magnesium powder quicker than nitrogen, resulting in magnesium nitride; High quality magnesium nitride in an extremely high purity and uniform particles can easily be prepared at 600 and ammonia in 1 h, then heated up to 800°C, with an ammonia flow rate of 500ml/min with an nitriding duration of 1h.

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