KAlTiSi3O9

KAlTiSi3O9 is a chemical formula representing a potassium aluminum titanium silicate. It would belong to the broader class of aluminosilicates and titanosilicates, materials in which silicon, aluminum, and titanium occupy tetrahedral sites in a silicate framework, balanced by alkali cations such as potassium.

In such a framework, Si4+ ions are partially substituted by Al3+ and Ti4+ in the tetrahedral network, generating negative framework charges that are neutralized by interstitial K+ ions. Depending on the degree of polymerization and substitution, the structure could resemble framework silicates such as feldspathoids or zeolite-like titanosilicates; the exact crystal symmetry would depend on synthesis conditions.

Natural occurrence: there is no widely recognized mineral with the exact composition KAlTiSi3O9. Synthetically, compounds with this composition could be prepared in hydrothermal, sol-gel, or solid-state synthesis routes, often within broader families of aluminotitanosilicates used in ceramics or catalysis.

Properties and applications: Without a defined phase, specific properties are not established. In general, aluminosilicate-titanosilicate materials can exhibit high refractoriness, chemical stability, and potential catalytic or ion-exchange properties, making them of interest for ceramic materials, glass-ceramics, or zeolite-like catalysts.

Nomenclature and classification: The formula denotes a potassium aluminum titanium silicate; as of now no standard mineral name corresponds to KAlTiSi3O9, and if synthesized, it would be described by its composition and crystal structure in the scientific literature.