Ferro silicon and silicon metal difference in composition

Composition:

Ferro silicon is an alloy of iron and silicon. It typically contains between 15% and 90% silicon and small amounts of other elements such as carbon, phosphorus, and sulfur. The amount of silicon in ferro silicon determines its properties, such as its melting point, density, and hardness. The composition of ferro silicon can vary depending on the specific application it is intended for.

Silicon metal, on the other hand, is a pure form of silicon. It is produced by heating quartz and carbon in an electric furnace at very high temperatures. The resulting material is a crystalline structure that is nearly 100% silicon. Silicon metal is often used as a raw material for the production of other silicon-based materials such as silicones, silanes, and semiconductors.