Titanic acids are chemical substances made of titanium, oxygen, and hydrogen that act like acids. They are used to make nanoparticles containing titanium, and as part of the process for making pure titanium dioxide for use in pigments.
The empirical formula for titanic acids is TiO2−n(OH)2n where n is any real number between 0 and 2. Some titanic acids are orthotitanic acid, empirical formula Ti(OH)4 (n = 2), and metatitanic acid, empirical formula TiO(OH)2 (n = 1).
Titanic acid is made of hydrates of large molecules of titanium dioxide, TiO2. Titanium dioxide does not dissolve or break apart in water, so these molecules stay large. Chemists have not found evidence of simple titanic acids with small molecules and simple molecular formulas.[source?]
While no simple titanic acids have been found, derivatives of them (called titanium alkoxides or orthotitanate esters) have. These compounds are made using titanium tetrachloride instead of orthotitanic acid.[source?]