Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > Properties and Uses of Cryolite

[Chemical Knowledge]：Properties and Uses of Cryolite

Read： 767 Time：20months ago Source：Transform the World with Simplicity

Cryolite (Cryolite) is a kind of mineral which plays an important role in the field of chemical production raw materials, and its chemical formula is Na3AlF6. Cryolite has a variety of properties and uses, which will be described in detail in this article.

1. the nature of cryolite

1. physical properties: cryolite is a colorless or white crystalline solid, with a high melting point (about 1009 ℃), and is not easy to deliquesce. It has good thermal and chemical stability, and can keep its structure from being destroyed at high temperature.
2. Chemical properties: cryolite is easily dissolved in water and has strong acidity. It can react with alkali metal and alkaline earth metal fluoride, sulfate, chloride, etc., to generate the corresponding complex. In addition, cryolite can also react with alumina to form sodium aluminate.

2. The use of cryolite

1. Electrolytic aluminum industry: Cryolite is used as a flux in the electrolytic aluminum industry, which can reduce the melting point of alumina, reduce the volatilization of the electrolyte, and improve the current efficiency, thereby increasing the output of aluminum. In addition, cryolite can also improve the conductivity of the electrolyte and reduce the loss of the electrolyte.
2. Glass industry: Cryolite is used as a flux and fining agent in the glass industry, which can reduce the melting temperature and viscosity of glass, and increase the output and quality of glass. In addition, cryolite can also improve the chemical resistance and thermal stability of the glass.
3. Ceramic industry: cryolite is used as a sintering aid and glaze in the ceramic industry, which can reduce the firing temperature of ceramics and improve the density and mechanical strength of ceramics. In addition, cryolite can also give ceramics a special color and luster.
4. Petrochemical industry: In the field of petrochemical industry, cryolite can be used as a catalyst and catalyst carrier to promote the cracking and reforming reactions of petroleum and improve the yield and quality of gasoline, diesel and other products.

In short, cryolite has a wide range of uses in the field of chemical production raw materials, and is of great significance for promoting the development of the chemical industry.

Previous： Properties and Uses of Lithium Iron Phosphate

Next： Properties and Uses of Aluminum Fluoride

News Categories