Titanyl sulfate is the

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

with the formula TiOSO₄. It is a white salt that forms by treatment of

titanium dioxide Titanium dioxide, also known as titanium(IV) oxide or titania , is the inorganic compound derived from titanium with the chemical formula . When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or Colour Index Internationa ...

with

sulfuric acid Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, ...

, either directly or indirectly. It hydrolyzes to a gel of hydrated titanium dioxide. Characteristic of most titanium(IV) compounds with oxygen-containing ligands, the species also includes oxo ligands.

Preparation

A number of methods provide titanium(IV) sulfates. One approach begins with , which can be obtained from hydrous titanium(IV) 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

ligand In coordination chemistry, a ligand is an ion or molecule with a functional group that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's el ...

s 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 In chemistry, a hydrate is a substance that contains water or its constituent elements. The chemical state of the water varies widely between different classes of hydrates, some of which were so labeled before their chemical structure was understo ...

, one Ti–OS bond is replaced by Ti–OH₂.

References

Titanium compounds Sulfates {{Inorganic-compound-stub