| Properties: | |
| Almost identical with hydrogen. D 2.0 (H=1), fp −254.4C (121 mm Hg), bp −249.5C, autoign temp 1085F. Noncorrosive. | |
| Derivation: | |
| Electrolysis of high-purity heavy water, fractional distillation of liquid hydrogen. | |
| Grade: | |
| 98, 99.5 atom %. | |
| Hazard: | |
| Highly flammable and explosive. Explosive range 4–74%. | |
| Use: | |
| Bombardment of atomic nuclei, tracer element, thermonuclear reactions. | |