Title: Aluminum Silicate

CAS Registry Number: 12141-46-7

CAS Name: Aluminum oxide silicate [Al2O(SiO4)]

Molecular Formula: Al2O5Si

Molecular Weight: 162.05

Percent Composition: Al 33.30%, O 49.37%, Si 17.33%

Line Formula: Al2SiO5

Literature References: Usually contains some water. Polymorphous; the three naturally occurring forms are andalusite, cyanite, sillimanite. Other aluminum silicate minerals are anauxite, dickite, kaolinite, kochite, mullite, newtonite, pyrophyllite, takizolite, termierite, ton. For prepn and properties see Gmelins, Aluminum (8th ed.) 35B, p 313-317 (1934).

Use: In dental cements, glass industry; manuf of semiprecious stones, enamels, ceramics, and colored lakes; paint filler; in washing compounds.