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[Chemical Knowledge]：Properties and uses of sodium metasilicate

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Sodium metasilicate is an important inorganic chemical raw material, which is widely used in chemical industry, metallurgy, textile, paper making, ceramics and other industrial fields. This article will detail the properties and uses of sodium metasilicate.

1. the nature of sodium metasilicate

sodium metasilicate (sodium metasilicate) is a white crystalline powder or particles, with hygroscopic. It is readily soluble in water and its aqueous solution is alkaline. Sodium metasilicate has a strong alkaline, can react with acid to generate the corresponding salt. In addition, it also has good heat resistance and corrosion resistance.

2. the use of sodium metasilicate

1.

in the field of chemical industry in the chemical industry, sodium metasilicate products can be used as raw materials for the production of sodium silicate, silica gel, silicone rubber and other products. In addition, it can also be used to prepare other silicates, such as zeolites, molecular sieves, etc.

2.

in the field of metallurgy In the field of metallurgy, sodium metasilicate can be used as a smelting additive for the extraction of metal elements. It can react with metal oxides in the ore to form soluble silicates, thereby extracting metal elements.

3. Textile field

In the textile field, sodium metasilicate can be used as a fabric pretreatment agent to improve the whiteness and gloss of fabrics. It can react with impurities on the surface of the fabric to remove them, while making the surface of the fabric smoother and improving the quality of the fabric.

4.

in the field of papermaking In the field of papermaking, sodium metasilicate can be used as a paper strengthening agent to improve the strength and toughness of paper. It can react with cellulose in the pulp to produce cellulose silicate, thereby improving the physical properties of the paper.

5.

in the field of ceramics In the field of ceramics, sodium metasilicate can be used as an additive to ceramic raw materials to adjust the viscosity and fluidity of ceramic slurries. At the same time, it can also improve the strength and hardness of ceramics.

In short, sodium metasilicate, as an important inorganic chemical raw material, has a wide range of applications in the field of chemical production raw materials. Its properties and uses are very extensive, and it is of great significance to promote the development of the chemical industry.

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