Titanium chloride is a chemical compound with the formula TiCl4. It is a colorless liquid at room temperature and is known for its strong reactivity, especially with water, where it can produce hydrochloric acid and titanium dioxide. This compound is primarily used in the production of titanium metal and as a catalyst in various chemical reactions. In industrial applications, titanium chloride plays a crucial role in the Kroll process, which is a method for extracting titanium from its ores. Additionally, it is utilized in the manufacture of pigments and in the synthesis of other titanium compounds, making it important in various sectors, including aerospace and automotive industries.