What is Magnesium Nitride?
Magnesium Nitride, is an inorganic compound with the chemical formula Mg3N2. It's particulate matter that is part of the cube crystal system. At room temperature, pure magnesium nutride is a color of yellow and green with part of magnesium oxide impurities can be grayish white.
The Molar mass of magnesium-nitride is 100.95g/mol. Density is 2.712g/cm3. Magnesium nitride is completely dissolved in water and acid, but partially dissolved in alcohol and ether.
The melting point for magnesium nitride reaches 1500 degrees. Magnesium, like other metal nitrides, reacts water to form ammonia. A catalyst is often employed. React with acid , or aqueous nonmetallic oxides in order to produce ammonium salts and magnesium salts.
Magnesium nitride is ceramic in nature. Magnesium Nitride has a high corrosion resistance, which greatly increases the efficiency of production. Magnesium also has high thermal conductivity, as well as high corrosion resistance and temperature resistance. Magnesium nitride also has a great importance due to its usage as a catalyst in the synthesis of boron nitrogen.
What is Magnesium Nitride Used For?
1. Utilized as a catalyst in order to make the nitride out of other elements with high hardness and thermal conductivity. It is also a good choice for corrosion resistance, wear resistance, and very high-temperature resistance. The first successful synthesizing of cubic boron it was the catalyst that was used, magnesium Nitride.
2. Used for high strength steel melting additives. Magnesium Nitride (Mg3N2) replaces desulphurized magnesium during construction steel smelting, which is beneficial to increase the density, strength, tension and bearing force of steel. In addition, the process of magnesium Nitride (Mg3N2) desulfurization, may reduce the quantity of other additives, helping to decrease the cost of production of construction steel.
3. Used to prepare special ceramic materials;
4. For the manufacture of special alloy foaming agent
5. To make special glass
6. For catalytic crosslinking of polymers
7. To recycle nuclear waste;
How Do You Produce Magnesium Nitride?
Presently, the major preparation methods of magnesium nitride involve direct reaction method for magnesium powder using nitrogen, method of reaction of magnesium with nitrogen using nitrogen plasma flow as well as the method for the explosion of magnesium coils in nitrogen atmosphere the low pressure chemical gas process, self-propagating high temperature synthesis procedure, nano magnesium nitride synthesizer, and so on.
Recently, G. Soto et al. have prepared amorphous magnesium nutride films that had different Mg/N ratios Si substrates in a molecular nitrogen environment through in-situ pulse laser deposition. These methods restrict their production in the industrial sector due to expensive costs, long processes with complex equipment, or low yields for magnesium oxide.
Although the direct reaction of magnesium powder in nitrogen has commercial value, the manufacture of magnesium powder requires more heat and a longer response time. In addition, the particle's shape is not perfect and easy to aggregate, which does not meet demands of industrial quality. It is possible to decompose NH3 into Nand N2 - with broken bonds more easily than N2, and the decomposed H2 could block the formation of MgO. So, ammonia can be used as a nitrogen source. Chen Faqin et al. used liquid ammonia to serve as nitrogen source to make magnesium nitride by direct nitriding of magnesium powder. The following conclusions can be drawn: With thermodynamic analysis, liquid ammonia could react with magnesium powder quicker than nitrogen to produce magnesium nitride. The best quality magnesium nitride powder with homogeneous and pure powder particles can be made at 600 degrees Celsius and in ammonia-based atmosphere for 1 hour, and then heated to 800, ammonia flow rate of about 500ml/min and the nitriding period of 1 hour.
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