Pure Silicon powder

Pure Silicon powder

Short Description:

  • Model Number: HR- Si
  • Color: Dark Gray
  • Size: 140/200 200/325 mesh/5-20um
  • Purity: 99.9/ 99.95/99.99
  • CAS No: 7440-21-3
  • Chemical Composition: Si: 99.9%min, Si, Fe, Cu, Ni, Mn, C, etc.
  • Application: Spraying, electronic semiconductors, solar energy, diamond tools
  • Package: Inside Plastic bag, outside Steel drum, 50kg/drum, or as customers' requirement
  • Product Detail

    Product Description

    Silica powder, also known as silica ash or silica slag, is a high-purity nano-sized silicon particle. It is an inactive oxide, insoluble in water or acids, but can react with bases to form the corresponding silicate. Silica powder is a gray or white amorphous powder with high purity, high activity and high dispersion. Its average particle size is between 10 and 20nm, and it has a large surface area. Silicon powder has excellent thermal conductivity and electrical insulation, and is resistant to high temperature and corrosion. Silicon powder is widely used in many fields, such as construction, rubber, ceramics, metallurgy and so on. It is mixed with various adhesives in a certain proportion to make thermal insulation sand slurry and lightweight soundproof panels. Silica powder is also used as a filler to improve the strength, elongation and oil resistance of rubber. In addition, silicon powder can also be used as a reinforcing agent and reinforcing agent to improve the strength and heat resistance of ceramics and refractories.

    silicon powder

    Fine silicon powder

    silicon powder

    Coarse silicon powder




    ≥ 99.99


    < 0.0001


    < 0.0001


    < 0.0002


    < 0.0001


    < 0.0001




    < 0.0002


    < 0.0005


    < 0.0008






    1. Industrial silicon powder is widely used in refractory materials and powder metallurgy industry to improve the high temperature resistance, wear resistance and antioxidant properties of the products. Its products are widely used in steelmaking furnace, kiln and kiln furniture.

    2. Silicon wafers processed by silicon powder are widely used in high technology field. They are indispensable raw materials for integrated circuits and electronic components.

    3. In metallurgical industry, industrial silicon powder is used as a non-iron base alloy additive and silicon steel alloy, so as to improve the hardenability of steel.

    4. Industrial silicon powder can also be used as a reductant for some metals, and it is used for new ceramic alloys.


    Quality control system

    quality control

    Huarui has strict quality management system. We test our products first after we finish our production, and we test again before every delivery, even sample. And if you need, we would like to accept third party to test. Of course if you like, we could provide sample to you to test.

    Our product quality is guaranteed by Sichuan Metallurgical Institute and Guangzhou Institute of Metal Research. The long term cooperation with them can save a lot of testing time for customers.

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