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[Chemical Knowledge]：The use of liquid ammonia big secret, these applications you know?

Read： 691 Time：17months ago Source：Transform the World with Simplicity

Liquid ammonia is a commonly used industrial gas with low density and pungent smell. It is a kind of gas with light weight and large volume, which is widely used in power, chemical and biological industries. The following are some applications of liquid ammonia.

1. Refrigerated

Liquid ammonia is a very popular refrigerant, and its cooling effect is better than most other refrigerants. It is widely used in industrial, commercial and household cold storage, refrigeration equipment and other places.

2. synthetic ammonia

synthetic ammonia is one of the basic raw materials in storage cooling, pharmaceutical, agriculture and other fields, and liquid ammonia is an important raw material for the preparation of synthetic ammonia. Through pressurization, cooling and oxidation, liquid ammonia can be converted to ammonia gas for further conversion to synthetic ammonia.

3. Let the steel harden

soak the steel in solid liquid ammonia to make the steel harder. This treatment method is called liquid nitrogen quenching. Liquid ammonia can be used to enhance the hardness and corrosion resistance of metal products, while also reducing the volatilization of parts when heated.

4. Catalytic

liquid ammonia shows a good catalytic effect in chemical reactions. For example, liquid ammonia can be used in the synthesis of organic chemical ligands, catalysis of chemical reactors, isomerization of reducing agents, etc.

5. chemical fertilizer

ammonia is the basis of industrial fertilizer production, in the production process of liquid ammonia is widely used. The importance of the use of liquid ammonia in this field has never been more apparent.

6.

of Medicines and Fragrances Liquid ammonia is also used in the field of medicines and fragrances and plays an important role in nitrogen capture, nitrogen heterocyclization and amination reactions. It is also used as a solvent in pharmaceuticals, cosmetics and flavors, as well as in the manufacture of glucose, dairy products and seasonings.

In general, liquid ammonia has important applications in industrial production and scientific research, ranging from ammonia synthesis, refrigeration and catalysis to the manufacture of pharmaceuticals and perfumes. Next time, when you see the need for refrigeration or synthetic ammonia in your life, you know that these are made of liquid ammonia.