How to prepare magnesium nitride?

To prepare magnesium nitride, the magnesium belt can be burned in nitrogen. The reaction equation is:

In the above reaction, if the nitrogen is not pure, it is easy to produce products containing magnesium oxide. The method of reaction in dry NH3 gas is better.

Place the magnesium scraps in a porcelain boat or a sintered magnesia boat. The boat is installed in a porcelain tube. One end of the porcelain tube is connected to a T-shaped tube. The end of the porcelain tube is connected to a U-shaped tube, and the tube is filled with desiccant, half of which is small flakes of CaO, and the other half is small flakes of KOH. The gas discharged from the reaction tube is absorbed by the absorption device, which is two conical flasks containing dilute sulfuric acid. In order to prevent back suction, do not insert the tube of the first absorption bottle below the surface of the dilute sulfuric acid.

Pour dry NH3 and N2 into the porcelain tube until the second absorption bottle no longer emits bubbles, indicating that the air in the porcelain tube has been purged. Raise the temperature to 800～850℃, heat the magnesium powder for 4 hours, the magnesium powder becomes hot, marking the beginning of the reaction, and at the same time H2 must be produced. During the reaction, the pressure of NH3 should be greater than the outside atmospheric pressure to avoid sucking back. When the reaction is over, turn off NH3, keep the original temperature and continue to pass N2 for 1.5h to remove the NH3·Mg3N2 adsorbed on Mg3N2, which is very deliquescent and must be stored in a dry container.

If the magnesium belt is burned in the air, in addition to magnesium oxide, some magnesium nitride will also be produced.

The physical properties of magnesium nitride

Magnesium nitride (Mg3N2) is an inorganic compound composed of nitrogen and magnesium, 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.

Overview of magnesium nitride Mg3N2

Magnesium nitride with the chemical formula Mg3N2 is an inorganic compound of magnesium and nitrogen, which is a greenish-yellow powder under normal temperature and pressure. 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. Like many metal nitrides, magnesium nitride reacts with water to form ammonia. To prepare magnesium nitride, the magnesium strip can be burned in nitrogen. Often used as a catalyst.

Application of magnesium nitride Mg3N2

Application fields of high-purity magnesium oxide Mg3N2: Fields: High-purity magnesium oxide has excellent alkali resistance and electrical insulation at high temperatures. The coefficient of thermal expansion and thermal conductivity are high, and the light transmittance is good. Widely used as high temperature and heat resistant materials. In the field of ceramics, it is used as a raw material for transparent ceramic crucibles and substrates in the field of electrical materials and electric fields, as a filler for magnetic devices, as a filler for insulating materials, and various carriers. The thermal conductivity of ceramic substrate is more than twice that of magnesium oxide, and the loss of electrolyte is only 1/10 of that of magnesium oxide. It can also be used as a raw material for high-purity molten magnesium oxide, and can be used chemically as "analytical pure" magnesium oxide.

Application fields of oxide nano-magnesium Mg3N2: N-oxide anus-magnesium has obvious small size effect, surface effect, quantum size effect and macro tunnel effect. After the modification, there is no agglomeration. It has many special functions of optics, catalysis , Magnetism, mechanics, chemical industry, etc. It has important application value and broad prospects, and is an important new material in the 21st century. Nano-magnesium oxide is widely used in electronics, catalysis, ceramics, petroleum products, coatings and other fields. Used in different products to play different roles. It is used as a flame retardant in the chemical fiber and plastic industries; as a high-temperature dehydrating agent in silicon steel plates, advanced ceramic materials, and electronic industry materials, and as a binder and additive in the industry. Chemical raw materials; radio industry high-frequency magnetic rod antennas, magnetic equipment fillers, insulating material fillers and various carriers; refractory fibers and refractory materials, magnesia chrome bricks, heat-resistant coating fillers, high-temperature insulation meters, power, cables, optical materials and smelting Steel; electrical insulating materials, manufacturing crucibles, electric furnaces, insulated pipes (tubular elements),

In the textile field, with the increasing demand for high-performance flame-retardant fibers, synthetic new high-performance flame retardants provide ideal materials for the development of functional fabrics. Nano-magnesium oxide is usually used in conjunction with wood chips and shavings to make refractory materials such as light weight, sound insulation, heat insulation, refractory fiberboard, and cermet. Compared with some traditional phosphorus-containing or halogen-containing organic flame retardants, nano-magnesium oxide is non-toxic, odorless, and has a small addition amount. It is an ideal additive for the development of flame-retardant fibers. In addition, nano-magnesium oxide used for fuel has strong cleaning and corrosion inhibition capabilities, and has good application prospects in coatings.

Magnesium oxide is widely used in the field of semiconductor electronic packaging due to its excellent electrical, thermal and mechanical properties.

Price of Magnesium Nitride Mg3N2

The price of magnesium nitride Mg3N2 products will vary with random factors such as production cost, transportation cost, international situation and market supply and demand for magnesium nitride Mg3N2 products. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality and low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for magnesium nitride Mg3N2 products, please feel free to send an inquiry to get the latest prices of magnesium nitride Mg3N2 products.

Suppliers of Magnesium Nitride Mg3N2

As a global supplier of magnesium nitride Mg3N2, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (titanium nitride, silicon nitride, titanium nitride, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.