Aluminosilicate#Aluminosilicate glasses
{{Short description|Mineral with elements Al, Si and O}}
{{About|a class of minerals|related neutral compounds composed solely of aluminium, silicon and oxygen|Aluminium silicate}}
Aluminosilicate refers to materials containing anionic Si-O-Al linkages. Commonly, the associate cations are sodium (Na+), potassium (K+) and protons (H+). Such materials occur as minerals, coal combustion products{{Cite journal |title= Brindle & McCarthy (2006) Chemical Constraints on Fly Ash Glass Compositions |url=https://doi.org/10.1021/ef0603028 |website=pubs.acs.org |doi=10.1021/ef0603028 |language=en}} and as synthetic materials, often in the form of zeolites. Both synthetic and natural aluminosilicates are of technical significance as structural materials, catalysts, and reagents.
Important representatives
Feldspar is a common tectosilicate aluminosilicate mineral made of potassium, sodium, and calcium cations surrounded by a negatively charged network of silicon, aluminium and oxygen atoms.
Many aluminosilicates are synthesized by reactions of silicates, aluminates, and other compounds. They have the general formula {{chem2|(MAlO2)(SiO2)_{x}(H2O)_{y}|}} where M+ is usually H+ and Na+. The Si/Al ratio is variable, which provides a means to tune the properties.{{Greenwood&Earnshaw2nd}} Many of these materials are porous and exhibit properties of industrial value.{{Cite web |title=Fact.MR – Aluminosilicate Market - Global Market Report (2024 to 2034) |url=https://www.factmr.com/report/aluminosilicate-market |access-date=2023-12-30 |website=www.factmr.com |language=en}} Naturally occurring microporous, hydrous aluminosilicate minerals are also referred to as zeolites.
See also
- Aluminium silicate
- Geopolymer cement
- Silicate minerals
- Calcium aluminosilicate
- Sodium aluminosilicate
- Gorilla Glass – a type of aluminosilicate glass
References
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