Lithium nitride is a metal nitrogen compound that is a violet or red crystalline solid with a pale green luster in reflected light and a ruby color in transmitted light. Long-term exposure to air will eventually turn into lithium carbonate. Li3N has been used in many fields, and the use of ionic polarization models can give a rational explanation for the catalytic role of Li3N at atmospheric pressure and high temperature and as a nitrogen source in solvothermal methods. Li3N, which is generated by the reaction of metallic lithium with N2 at 500 ℃, is a good catalyst for the synthesis of cBN under high temperature and high pressure. It can also catalyze the reaction of hBN under normal pressure and high temperature, and is used in the solvothermal method for the synthesis of hBN and Nitrogen source for cBN.
Lithium Hydride:
Lithium hydride is a lithium hydride. It is a colorless crystal, generally with impurities and grayish white. Lithium hydride is a salt-like hydride with a high melting point and thermal stability. Thermal conductivity decreases with increasing temperature and varies with composition and pressure. Lithium hydride is flammable and reacts violently with water to form corrosive lithium hydroxide and hydrogen. Not generally a hydride reducing agent, except in the synthesis of certain metalloid hydrides. For example, silane can be chemically reacted from lithium hydride and silicon tetrachloride through the Sundermeyer process.
Main application areas:
1. Used as desiccant, hydrogen generating agent, organic synthesis reducing agent, etc.
2. Military use as a source of hydrogen generation. Organic synthesis is used as reducing agent.
3. Lithium hydride is used as condensing agent, reducing agent, alkylating agent, desiccant in organic synthesis, and it is also a good hydrogen storage material.
4. Lithium deuteride in lithium hydride is the source of deuterium fused in hydrogen bombs.
5. Superhard material cubic boron nitride catalyst.
6. New energy chemical lithium battery anode material.
