| CAS No.: | 14808-60-7 |
|---|---|
| Formula: | Sio2 |
| EINECS: | 238-878-4 |
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Silicon dioxide (chemical formula: SiO2) is an acidic oxide, corresponding to a hydrate of silicic acid (H2SiO2). Silicon dioxide is the most important compound of silicon. Natural silica on Earth accounts for about 12% of the Earth's crust mass, and its existence can be divided into crystalline and amorphous forms, collectively known as silica.
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