First and foremost, we should note that Si4O3 is not an accurate chemical substance. The appropriate chemical formula for silicon dioxide, a compound of silicon and oxygen, is SiO2.
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Definition of SiO2
1.1 Names
1.1.1 Common name: Silicon dioxide, Quartz, Silica sand
1.1.2 English name: Silicon dioxide
1.2 Atomic mass: There are 2 oxygen atoms and 1 silicon atom
1.3 Molecular weight: ~60.08 g/mol
1.3.1 Molecular structure: In contact with SiO2, each silicon atom is connected to 4 oxygen atoms, forming an equilateral triangle network.
1.4 Ion structure: SiO2 does not form ions as it is a solid with a network structure. -
Properties of SiO2
2.1 Physical properties of SiO2
State: Solid under normal conditions
Color: White or transparent
Smell: Odorless
PH level: 7 (neutral)
2.2 Chemical properties of SiO2: Very inert, resistant to acids (except HF), and insoluble in water. -
Common chemical equations of SiO2
Due to its inert nature, SiO2 does not generally react with metals, nonmetals, or salts. -
Preparation of SiO2
4.1 Laboratory preparation of SiO2: Natural SiO2 can be obtained from sand or quartz.
4.2 Industrial preparation of SiO2: In the industry, SiO2 is produced by melting and refining silica sand.