Description :

silicon is mainly used in the production of aluminum alloys, organic silicon, and polycrystalline silicon.

1. Aluminum alloys generally use  silicon with grades 441# and 3303#, sometimes with higher specifications and requirements for phosphorus elements. 

2. Organic silicon generally requires an aluminum content of less than 0.2%, and may have some requirements for titanium, phosphorus, and boron. 

3. The production of polycrystalline silicon is equivalent to purifying silicon, without strict requirements for the grade of silicon. There are requirements for some trace elements, such as boron and carbon, which affect the photoelectric conversion efficiency.