Common titanium salts and compounds in water

Many titanium process chemicals hydrolyse when mixed with water. For this element, it is more useful to distinguish acidic or complexed titanium solutions from hydrolysis products and particles than to assume stable dissolved salt molecules.

See also titanium in water and the titanium element page.

Selected salts and compounds

This is a practical selection, not a ranking of abundance in every water. Qualitative solubility descriptions refer to the stated compound; hydration, temperature, pH and complexation can change its behaviour. A soluble starting salt does not necessarily remain unchanged after addition to water.

Removal, purification and recovery

Start by determining whether titanium is dissolved, complexed or particulate. In acidic process water, controlled neutralisation and hydrolysis can generate hydrated titanium solids. The resulting particles may require coagulation, settling and filtration; fine colloids can pass through an unsuitable filter.

Evaluate membranes or other polishing processes only after considering solids loading, fouling and the residual dissolved species. Fluoride or other strong complexing constituents can change titanium behaviour and should be included in the analysis. Reactive titanium chloride feeds require engineered chemical handling; this page is a treatment overview, not an instruction for mixing them with water.

Information for process selection

Useful inputs include flow, pH, temperature, salinity, total and dissolved titanium, other metals, suspended solids and known complexing constituents. Define the treated-water target and whether recovery is an objective. Laboratory or pilot testing can establish performance for the actual feed rather than a simplified salt solution.