Ferrosilicon


Upload Time:

2022-05-31

Silicon (called silicon in Taiwan and Hong Kong) is a chemical element, its chemical symbol is Si, formerly known as silicon. The atomic number is 14, the relative atomic mass is 28.09, there are two kinds of allotropes, amorphous and crystalline, and allotropes include amorphous silicon and crystalline silicon. A metalloid element belonging to group IVA on the periodic table. Crystalline silicon is steel gray, amorphous silicon is black, density is 2.4g/cm3, melting point is 1420℃, boiling point is 2355℃, crystalline silicon belongs to atomic crystal, hard and shiny, and has semiconductor properties. The chemical properties of silicon are relatively active. It can combine with oxygen and other elements at high temperatures. It is insoluble in water, nitric acid and hydrochloric acid, but soluble in hydrofluoric acid and lye. It is used to make alloys such as ferrosilicon, silicon steel, etc., single crystal. Silicon is an important semiconductor material used to make high-power transistors, rectifiers, solar cells, and more. Silicon is widely distributed in nature, containing about 27.6% in the earth's crust, mainly in the form of silicon dioxide and silicate. Crystalline silicon is dark blue, very brittle, and is a typical semiconductor. Chemical properties are very stable. At room temperature, it is difficult to react with other substances except hydrogen fluoride.

Ferrosilicon

Silicon (called silicon in Taiwan and Hong Kong) is a chemical element, its chemical symbol is Si, formerly known as silicon. The atomic number is 14, the relative atomic mass is 28.09, there are two kinds of allotropes, amorphous and crystalline, and allotropes include amorphous silicon and crystalline silicon. A metalloid element belonging to group IVA on the periodic table. Crystalline silicon is steel gray, amorphous silicon is black, density is 2.4g/cm3, melting point is 1420℃, boiling point is 2355℃, crystalline silicon belongs to atomic crystal, hard and shiny, and has semiconductor properties. The chemical properties of silicon are relatively active. It can combine with oxygen and other elements at high temperatures. It is insoluble in water, nitric acid and hydrochloric acid, but soluble in hydrofluoric acid and lye. It is used to make alloys such as ferrosilicon, silicon steel, etc., single crystal. Silicon is an important semiconductor material used to make high-power transistors, rectifiers, solar cells, and more. Silicon is widely distributed in nature, containing about 27.6% in the earth's crust, mainly in the form of silicon dioxide and silicate. Crystalline silicon is dark blue, very brittle, and is a typical semiconductor. Chemical properties are very stable. At room temperature, it is difficult to react with other substances except hydrogen fluoride.