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Silicon powder and metal silicon powder are two completely different products. In actual use, these two products are often confused because they are inextricably linked. Silica fume is also called silica fume and microsilica fume. It is the soot recovered in the process of producing metal silicon or ferroalloy. Due to its high content of silica, finer particles and high activity, it is widely used in concrete, refractory materials, rubber, paint, etc. Wide range of applications in the industry. The main component of metal silicon powder is crystalline silicon, and its early form is massive, which becomes powder after crushing or grinding, and is used in industries such as refractory materials.

The main difference between metal silicon powder and silicon powder is that the reason why metal silicon powder becomes powder is through physical grinding, and silicon powder is naturally formed during the production process. The chemical composition varies greatly. Silicon powder is mainly silicon dioxide, and the main content of metal silicon is SI element. Metallic silica fume is generally inactive, while silica fume is pozzolanic active. The color of metal silicon powder is usually relatively stable, while the color of silicon powder varies greatly from white to black. Silica fume is relatively widely used. The price of metal silicon powder is very high, several times that of silicon powder.