Aluminium silicate
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| Aluminium silicate | |
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| Identifiers | |
| PubChem | 10313254 |
| ChemSpider | 8488719  |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | Al2SiO5 |
| Molar mass | 162.0456 g mol-1 |
| Exact mass | 161.914576525 g mol-1 |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Aluminium silicate (or aluminum silicate) has the chemical formula (AlO)2SiO3. It has a density of 2.8 to 2.9 g/cm³, a vitreous lustre, a refractive index of 1.56, a Mohs hardness of 4.5-7.5 (depending upon structure), and can have orthorhombic crystallography.[1] It is insoluble and used as a refractory in glassmaking.
Minerals composed of aluminium silicate include
- Andalusite
- Sillimanite (or Bucholzite)
- Kyanite
These all have the same chemical composition but are polymorphic, having different crystalline structures.
Aluminium silicate is considered to be fireproof for the purposes of building and insulation.
[edit] See also
[edit] References
- ^ "Reade Advanced Materials offers: Aluminum Silicate Powder". http://www.reade.com/en/Products/Minerals-and-Ores/Aluminum-Silicate-Powder.html. Retrieved 2006-11-16.
[edit] External links
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