Amorphous Aluminum Phosphates

Abstract

Insoluble inorganic glasses are difficult to study as molecular structures. The science of soluble phosphate glasses is highly advanced and can serve as pilots for other systems. Anhydrous amorphous aluminum condensed phosphate and insoluble silicate glasses are examples of difficult systems. Anhydrous amorphous condensed phosphates in the molar composition range 0.0 Al2O3/P2O5•…0.5 were prepared. Some physical properties were studied as a function of compositions and treatments. Amorphous aluminum condensed phosphates are ionic-covalent polymers as demonstrated in classical phosphate glass theory.