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[Chemical Knowledge]：Properties and Uses of Sodium Fluorosilicate

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Sodium fluosilicate is an important inorganic chemical, widely used in chemical industry, metallurgy, ceramics, glass and other fields. It has a unique nature and a wide range of uses, for the development of modern chemical industry has played an important role.

1. the nature of sodium fluorosilicate

sodium fluorosilicate (Na2SiF6) is a white crystalline powder with strong hygroscopicity. It is easily soluble in water and insoluble in alcohol and ether. Sodium fluorosilicate has strong acidity and can react with alkali metal hydroxides to produce the corresponding fluorides and silicates. In addition, sodium fluorosilicate also has good thermal stability, can be decomposed at high temperature to generate sodium fluoride and silicon dioxide.

2. the use of sodium fluorosilicate

1.

in the ceramic industry In the ceramic industry, sodium fluorosilicate is widely used as a flux and an opacifying agent. It can reduce the sintering temperature of ceramics and improve the compactness and mechanical strength of ceramics. In addition, sodium fluorosilicate can also give ceramics good wear resistance and corrosion resistance.

2. Glass Industry

In the glass industry, sodium fluorosilicate is widely used as a glass opacifier. It can make the glass opaque, improve the light shielding and aesthetic degree of glass. In addition, sodium fluorosilicate can also improve the processability of glass and increase the mechanical strength of glass.

3. Metallurgical industry

In the metallurgical industry, sodium fluosilicate is widely used as a smelting additive. It can promote the separation of metal elements and impurity elements in the ore, and improve the purity and yield of the metal. In addition, sodium fluorosilicate can also be used as a corrosion inhibitor on the metal surface to extend the service life of metal equipment.

4. Detergent industry

In the detergent industry, sodium fluosilicate can be used as an additive in the detergent to improve the washing performance and hard water resistance of the detergent. At the same time, sodium fluorosilicate also has good wettability and emulsification, which can improve the foam performance and wetting performance of the detergent.

In short, sodium fluosilicate, as an important inorganic chemical product, has a wide range of uses in the field of chemical production raw materials. Its nature and use not only plays an important role in the development of modern chemical industry, but also brings a lot of convenience to people's life.

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