What is Magnesium Nitride?
Magnesium Nitride, is an organic compound with the chemical formula Mg3N2. It belongs to the cluster of cubic crystals. At temperatures at room temperature, pure magnesium nutride is a color of yellow and green however magnesium nitride, which has an element of magnesium oxide impurities is grayish white.
The Molar mass of magnesium nutride is 100.95g/mol. Density is 2.712g/cm3. Magnesium Nitride is completely dissolved in water and acid, but is partially dissolvable when mixed with the ether and ethanol.
The melting point for magnesium nitride is 1500 °. Magnesium Nitride, just like many metal nitrides, reacts with water to produce ammonia. Commonly used as a catalyst. React with acidic or aqueous nonmetallic oxides in order to produce ammonium salts as well as magnesium salts.
Magnesium Nitride is a form of ceramic in nature. Magnesium nitride has high corrosion resistance and greatly improves productivity. Magnesium nitride has also high thermal conductivity, as well being high corrosion resistance as well as resistance to temperature. Magnesium nitride has another great significance because it serves as a catalyst used in the synthesizing of boron.
What Is Magnesium-Nitride Used For?
1. It is used as a catalyst to create the nitride elements that have high hardness as well as high thermal conductivity. wear resistance, corrosion resistance and the ability to withstand high temperatures. The first successful production of cubic boron-nitride the catalyst was magnesium Nitride.
2. The product is designed for use as high strength steel and smelting additives. Magnesium nitride (Mg3N2) replaces desulphurized magnesium in construction steel melting, which helps to improve the density, strength of the steel, as well as the tension and bearing force of steel. In addition, using of magnesium Nitride (Mg3N2) desulfurizationmay reduce the quantity of other additives, thereby helping to lower the cost of production for construction steel.
3. Used to prepare special ceramic materials;
4. To make a special alloy foaming agent
5. Glass that is specially made to be used in the manufacturing process;
6. For crosslinking catalytically produced polymers
7. To recycle nuclear waste
How to Produce Magnesium Nitride?
Presently, the primary preparation methods of magnesium nitride consist of direct reaction method for magnesium powder using nitrogen, the reaction method of magnesium with nitrogen in nitrogen plasma flow, magnesium coil explosion method in nitrogen atmosphere low pressure chemical gas technique, self-propagating high temperature synthesis method, the synthesis of nano magnesium as well as other methods.
Recently, G. Soto et al. produced amorphous magnesium-nitride films with different Mg:N ratios Si substrates in a molecular nitrous environment using Pulse laser deposition. These methods are limited in their production for industrial use due to their high costs, the lengthy process complex operation of equipment or the low yield of magnesium Nitride.
While the direct reaction of magnesium powder and nitrogen has significant industrial potential, the making of magnesium oxide powder requires greater reaction temperatures and a longer reaction time. Additionally, the shape of the powder is insufficient and easy to agglomerate, which doesn't meet requirements of industrial quality. The NH3 is decomposed into N- which is a broken bond faster than N2 and the H2 that is decomposed can interfere with the formation process of MgO, which is why ammonia gas can be used as nitrogen source. Chen Faqin et al. employed liquid ammonia as a nitrogen source for the preparation of magnesium nitride in the form of powder via direct Nitriding of magnesium powder. The following conclusions can be drawn: Using thermodynamic study, liquid ammonia might react with magnesium powder more easily than nitrogen to make magnesium nitride. Good quality magnesium nitride that is homogeneous and pure powder particles can be made by heating them to 600 and an ammonia atmosphere for 1 h, then heated up to 800, ammonia flow rate of 500ml/min , and the time for nitriding of 1h.
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