Titaanihalides

Titanium halides are chemical compounds containing titanium and one or more halogen atoms. The most common titanium halides are titanium(III) chloride (TiCl3) and titanium(IV) chloride (TiCl4). Titanium(III) chloride is a purple solid that is often used as a catalyst in the production of polymers like polypropylene. It is a strong reducing agent. Titanium(IV) chloride is a colorless liquid with a pungent odor. It is highly reactive and fumes in moist air, readily hydrolyzing to form titanium dioxide and hydrochloric acid. TiCl4 is a key intermediate in the production of titanium metal through the Kroll process, where it is reduced with magnesium. It also finds applications in the production of titanium dioxide pigments and as a Lewis acid catalyst. Other titanium halides exist, such as titanium(II) chloride (TiCl2) and titanium(IV) bromide (TiBr4), but they are less common. Titanium halides are generally reactive compounds, with their reactivity increasing with the oxidation state of titanium and decreasing down the halogen group (fluorine being the most electronegative). Their properties and applications are dictated by the specific combination of titanium oxidation state and halogen involved.