Chemical properties of titanium

Titanium at high temperature, the reaction can occur with many elements and compounds. Various elements, according to their different reactions occur with titanium can be divided into four categories:
First class: the halogen group element and titanium and oxygen covalent bond and ionic bond compound;
II: transition elements, hydrogen, beryllium, boron, Group C and Group pnictogen titanium intermetallic compound and solid solution is limited;
The third category: zirconium, hafnium, vanadium family and chromium family, Scandium infinite solid solution with the formation of titanium;

The fourth category: an inert gas, alkali metal, alkaline earth metals, rare earth elements (except scandium outside