In fact, metallic silicon can be divided into many types. In order to let everyone better understand metallic silicon, let us first briefly introduce the types of metallic silicon: According to the weight of the three main impurities contained in metallic silicon: iron, aluminum, and calcium, metallic silicon can be divided into different grades. Metal silicon 441 is also one of them.
Industrially, metallic silicon 441 is usually produced by reducing carbon dioxide to silica in an electric furnace. The following is the chemical reaction equation of metallic silicon: SiO2+2C→Si+2CO The purity of the silicon obtained in this way is 98-99%. The product generated under this chemical reaction is called metallic silicon. It is then melted and recrystallized, and impurities are removed with acid to obtain metallic silicon with a purity of 99.7-99.8%.
As we all know, metallic silicon 441 is mainly composed of silicon and therefore has properties similar to silicon. Silicon has two allotropes, amorphous silicon and crystalline silicon. Amorphous silicon is a gray-black powder, which is actually a microcrystal. Crystalline silicon has the crystal structure and semiconductor properties of diamond, with a melting point of 1410°C, a boiling point of 2355°C, Mohs hardness and brittleness. Amorphous silicon is chemically active and burns violently in oxygen. Metallic silicon 441 reacts with non-metals such as halogen, nitrogen, and carbon at high temperatures. Amorphous silicon is almost insoluble in all inorganic and organic acids, including hydrofluoric acid, but is soluble in mixed acids of nitric acid and hydrofluoric acid. .Concentrated sodium hydroxide solution can dissolve amorphous silicon and release hydrogen gas. Crystalline silicon is relatively inactive and does not combine with oxygen even at high temperatures. Metal silicon 441 is insoluble in any inorganic acid and organic acid, but is soluble in mixed acid of nitric acid and hydrofluoric acid and concentrated sodium hydroxide solution. Due to limited time, we will first introduce metal silicon 441.
Of course, there is a lot of information about metallic silicon. If you want to know about silicon metal 441, you need to know more. You can follow our website for more relevant information.
