Model No.	Chemical Composition (%)
	Si	Fe	Al	Ca
	≥	≤
Si-1101	99.79	0.1	0.1	0.01

Silicon Metal 1101 is one of the grades of Silicon Metal. Silicon metal is a product smelted from quartz and coke in an electric furnace. The main component is silicon, and its content is generally above 98%. In addition to silicon elements, other impurities in silicon metal include iron, aluminum, calcium, etc.

The production process of silicon metal usually uses carbothermal method. First, silica and carbonaceous reducing agent are smelted at high temperature in a submerged arc furnace to reduce Silicon Metal from silica. Then, through refining to remove impurities and obtain higher-purity silicon metal.

Regarding the grades of Silicon Metal, silicon metal have different grades according to the content of the three main impurities of iron, aluminum, and calcium, such as 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101, etc. Taking 1101 as an example, its brand indicates that the iron, aluminum, and calcium contents are less than 0.1%, less than 0.1%, and less than 0.01% respectively.

The main uses of Silicon Metal 1101 include the following fields:

Semiconductor device manufacturing: Silicon metal 1101 is a type of high-purity silicon which can make semiconductor devices such as integrated circuits and solar cells.

Refractory materials and alloy additives: Silicon Metal powder is a good alloy additive in the field of refractory industry, which can improve the high temperature resistance, wear resistance and oxidation resistance of products.

Silicone chemical industry: Silicon Metal powder is the basic raw material for the synthesis of silicone polymers. It is useful material to produce silicon monomers, silicone oil, silicone rubber preservatives, etc. On the other hand, It can improve the high temperature resistance, electrical insulation, corrosion resistance and other properties of products.

Metallurgical casting industry: Silicon Metal powder, as a non-iron-based alloy additive and silicon steel alloy agent, can improve the hardenability of steel. It is also a reducing agent for certain metals and new ceramic alloys.