Titanyl sulfate


Titanyl sulfate is the inorganic compound with the formula TiOSO4. It is a white salt that forms by treatment of titanium dioxide with sulfuric acid, either directly or indirectly. It hydrolyzes to a gel of hydrated titanium dioxide. Characteristic of most titanium compounds with oxygen-containing ligands, the species also includes oxo ligands.

Preparation

A number of methods provide titanium sulfates. One approach begins with, which can be obtained from hydrous titanium oxides. This salt is treated with hot aqueous sulfuric acid to degrade the oxalate:

Structure

The structure consists of dense polymeric network with tetrahedral sulfur and octahedral titanium centers. The six ligands attached to titanium are derived from four different sulfate moieties and a bridging oxide. A monohydrate is also known, being prepared similarly to the anhydrous material. In the hydrate, one Ti-OS bond is replaced by Ti-OH2.