Magnesium nitride and its application

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What is Magnesium Nitride (MgN)? Magnesium-nitride This inorganic substance is composed of magnesium and nitrogen. It has a molecular composition of Mg3N2, with a weight of 100.9494. Belongs in the cubic crystal system. At room temperature, pure magnesium nitride powder is yellow-green. However, magnesium nitride that contains some magnesium oxide is off-white. Ammonia is formed when magnesium nitride reacts to water, as it does with many metal nitrides. Magnesium strips can be burned with nitrogen to produce magnesium nitride. It is often used as a catalyst.
Magnesium nitride chemical and physical properties
Magnesium (Mg3N2) nitride is an inorganic compound with a cubic crystal structure composed of nitrogen. At room temperature, pure magnesium nitride powder is yellow-green. Magnesium Nitride that contains some magnesium oxide impurities however is off-white. It is soluble in acid and slightly soluble with ethanol, but not ether.
Magnesium Nitride, like other metal nitrides that react with water to create ammonia, also does this. Reacts with non-metal oxides or acids to produce ammonium salts.

Magnesium nitride preparation
To prepare magnesium nitride The strip of magnesium can be oxidized in nitrogen. The reaction is:
It is possible to produce magnesium oxide in the above reaction if the Nitrogen is not pure. It is better to react with dry NH3 gases.
Install the magnesium chips in a porcelain or sintered magnesium boat. Install the boat in a tube made of porcelain. The porcelain tube has a T-shaped tube attached at one end. The porcelain tube ends are connected to U-shaped tubes, which are filled with desiccant. The absorption device is made up of two conical flasks that are filled with dilute acid. Avoid inserting the tube of first absorption bottle beneath the surface of dilute sulfuric.
Pour dry NH3 or N2 into porcelain tube. When the second bottle of absorption stops bubbling it means that air is out of the tube. The temperature will be increased to 800-850degC. The magnesium powder will then be heated for 4hrs. As the magnesium powder heats up, the reaction begins. H2 must also be produced. The pressure of the NH3 during the reaction should be greater than that outside atmospheric pressure in order to avoid back-suction. After the reaction has finished, shut off the NH3, but keep the temperature at the same level. Continue to pass N2 over 1.5h in order to remove the adsorbed NH3*Mg3N2 on Mg3N2. The NH3*Mg3N2 molecule is highly liquescent, and should be stored in an airtight container.
When the magnesium belt is burnt in the atmosphere, magnesium oxide and magnesium nitride are produced.
Magnesium Nitride Application
1. Use as a catalyst in the preparation of nitrides containing other elements that have high hardness, thermal conductivity and corrosion resistance. Also used for high-temperature resistance. Magnesium nitride acted as a catalyst when cubic boron-nitride, a new material, was synthesized successfully for the first time.
2. Additives in the production of high-strength alloy steel. Magnesium (Mg3N2) can replace desulfurized calcium in construction steel smelting, improving the density, strength, durability, and tensile strength of steel. Magnesium nitride can be used to desulfurize construction steel, and it is also a cost-effective way to do so.
3. Preparation special ceramic materials
4. Foaming Agent for Manufacturing Special Alloys
5. Special glass is used to manufacture;
6. Crosslinking catalytic polymer;
7. Recycling of nuclear waste
8. Use as a catalyst material in the synthesis for diamond synthesis, and cubic boron-nitride.

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