| Formula / Notation | O2Si |
|---|---|
| CAS Number | 7631-86-9 |
| Molecular Weight | 60.084 |
| Melting Point | 3110 °F (NIOSH, 2024) |
| Boiling Point | 4046 °F at 760 mmHg (NIOSH, 2024) |
| Density | 2.2 (NIOSH, 2024) - Denser than water; will sink |
| Solubility | Insoluble (NIOSH, 2024) |
| Appearance | Transparent to gray, odorless powder. Irritating to the skin and eyes on contact. Inhalation will cause irritation in the respiratory tract. [Note: Amorphous silica is the non-crystalline form of S... |
| Also Known As | dioxosilane; SILICON DIOXIDE; Silica; Dioxosilane; 7631-86-9; Silicic anhydride; Diatomaceous silica; Wessalon; Zorbax sil; Silica, amorphous |
| Category | Inorganic Compounds |
What is Silica gel?
Silicon dioxide is a silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.
Formula & Notation
IUPAC Name: dioxosilane
Other Names / Synonyms: dioxosilane; SILICON DIOXIDE; Silica; Dioxosilane; 7631-86-9; Silicic anhydride; Diatomaceous silica; Wessalon; Zorbax sil; Silica, amorphous
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 3110 °F (NIOSH, 2024) |
| Boiling Point | 4046 °F at 760 mmHg (NIOSH, 2024) |
| Density | 2.2 (NIOSH, 2024) - Denser than water; will sink |
| Molecular Weight | 60.084 |
| Solubility | Insoluble (NIOSH, 2024) |
| Appearance | Transparent to gray, odorless powder. Irritating to the skin and eyes on contact. Inhalation will cause irritation in the respiratory tract. [Note: Amorphous silica is the non-crystalline form of S... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Silicon dioxide is a silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.
Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.
May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.
The formula or notation for Silica gel is: O2Si