Uranium metal heated to 250 to 300 °C (482 to 572 °F) reacts with <answer>hydrogen</answer> to form uranium hydride. Even higher temperatures will reversibly remove the <answer>hydrogen</answer>. This property makes uranium hydrides convenient starting materials to create reactive uranium powder along with various uranium carbide, nitride, and halide compounds. Two crystal modifications of uranium hydride exist: an α form that is obtained at low temperatures and a β form that is created when the formation temperature is above 250 °C.
What does uranium metal react with to create uranium hydride?
hydrogen