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Na2Sio2, with the chemical formula Na2O·SiO2, is an inorganic compound widely used in various fields. Its unique chemical and physical structure gives it many unique properties and applications. This article will explore the definition and characteristics of Na2Sio2, its application scenarios, crystal structure, electronic structure, optical properties, electrical properties, mechanical properties, and thermal properties. It will also discuss its role in chemical reactions.


Definition and characteristics of Na2Sio2


Na2Sio2, also known as sodium silicate, is an inorganic compound composed of sodium, silicon and oxygen elements. Its molecular formula is Na2O·SiO2, which is a common silicate.

Na2Sio2 has a variety of features, including:

(1) Easily soluble in water and has high water solubility.

(2) Has high viscosity.

(3) A transparent or translucent solution can be formed in water.

(4) Has high ionic conductivity.

(5) Easily decomposes at high temperatures.

Na2Sio2 has a wide range of application scenarios, including:

  1. Building materials: Due to their high viscosity and durability, Na2Sio2 is widely used as a reinforcing agent for concrete and masonry structures and can also be used to make refractory materials.
  2. Detergent: Na2Sio2 is widely used in washing powder, soap and other washing products due to its good decontamination ability.
  3. Medical field: Na2Sio2 has antibacterial and anti-inflammatory effects and is used to make drugs and medical devices.
  4. Environmental protection field: Na2Sio2 can be used to make adsorbents and catalysts, helping to reduce environmental pollution.
  5. Metallurgical field: Na2Sio2 can extract and purify metals as a raw material for ceramics and glass.

Crystal structure and electronic structure of Na2Sio2

The crystal structure of Na2Sio2 belongs to the cubic crystal system. In its structure, silicon atoms and oxygen atoms form silicon-oxygen tetrahedrons, and sodium atoms are located between the silicon-oxygen tetrahedrons. In its electronic structure, silicon and oxygen atoms’ outer electrons satisfy the eight-electron stable structure. In contrast, the outermost electron of sodium atoms forms ionic bonds with the electrons of silicon and oxygen atoms.

Optical, electrical, mechanical and thermal properties of Na2Sio2

Na2Sio2 has a variety of physical properties. In terms of optics, it has high transparency and can be used to make optical materials. In electricity, it has high ionic conductivity and can be used to make electrolytes and dielectric materials. Mechanically, it has high hardness, wear quality, and corrosion resistance and can be used to make wear-resistant materials and protective coatings. In terms of thermal properties, it has good thermal stability and can be used to make heat-resistant materials.

The role of Na2Sio2 in chemical reactions

In chemical reactions, Na2Sio2 mainly serves as an essential silicate component and participates in various chemical reactions. It can dissociate sodium and silicate ions in an aqueous solution and react with other ions to form silicate precipitation. In addition, it can also serve as a catalyst and carrier to participate in a variety of organic and inorganic chemical reactions.

As a joint silicate compound, Na2Sio2 has various distinctive physical and chemical properties and is widely used in various fields. We can better exploit their properties and explore new application areas by gaining a deeper understanding of their crystal structure, electronic structure, and optical, electrical, mechanical, and thermal properties.



Luoyang Tongrun Nano Technology Co. Ltd. is a dependable global sodium silicate supplier & manufacturer with over 11 years of experience providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, etc.

If you want high-purity sodium silicate powder, don’t hesitate to contact us and submit your inquiry.

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