Aluminium silicate

Aluminium silicate
Identifiers
PubChem 10313254
ChemSpider 8488719 N
Jmol-3D images Image 1
Properties
Molecular formula Al2SiO5
Molar mass 162.0456 g mol-1
Exact mass 161.914576525 g mol-1
 N (verify) (what is: Y/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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

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.

See also

References

  1. ^ "Reade Advanced Materials offers: Aluminum Silicate Powder". http://www.reade.com/en/Products/Minerals-and-Ores/Aluminum-Silicate-Powder.html. Retrieved 2006-11-16. 

External links