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Does SiO2 Dissolve In Water

"On the Solubility of Silicon Dioxide in Water"

I asked whether silicon dioxide (SiO _ 2) can dissolve in water, which is related to the characteristics of matter.

SiO _ 2 is an important oxide of silicon. Under normal conditions, SiO _ 2 is insoluble in water. Due to its unique structure, silicon atoms and oxygen atoms are closely connected by covalent bonds to form a three-dimensional network of solid structures. This structure gives SiO _ 2 quite high stability, and the force of water molecules is difficult to break it apart and disperse it in water, so SiO _ 2 has little potential to dissolve in water.

Looking at the principle of dissolution of various substances, it is mainly due to the strong enough interaction between the solute and the solvent, such as the dissociation of ionic bonds, the formation of hydrogen bonds, etc. However, between SiO 2 and water, the polarity of water molecules is difficult to interact effectively with the network structure of SiO 2, which is not enough to break the internal chemical bonds, so SiO 2 is insoluble in water.

In summary, SiO 2 is usually insoluble in water, which is determined by its inherent physical and chemical properties.