Titanium hydride 
 TiH2, density 3.8g / L. Slow decomposition at 400 ℃ in vacuum at 600 ~ 800 ℃ complete dehydrogenation. High chemical stability, and air and water is not the role, but it is easy and strong oxidants. In the power vacuum process for the getter, when used in the manufacture of foam metal hydrogen source, and as a supply source of high purity, but also for metal - ceramic sealing and powder supply to the titanium alloy powder. Method by direct reaction of titanium and hydrogen, or hydrogen reduction of titanium dioxide using calcium hydride