| Identification | Back Directory | [Name]
(3He)helium | [CAS]
14762-55-1 | [Synonyms]
(3He)helium
helium-3 atom
Einecs 238-822-9
Helium, isotope of mass 3 | [EINECS(EC#)]
238-822-9 | [Molecular Formula]
He | [MDL Number]
MFCD00083847 | [MOL File]
14762-55-1.mol | [Molecular Weight]
2.9936 |
| Hazard Information | Back Directory | [Chemical Properties]
Helium-3,3He, has been known as a stable isotope since the middle-1930s and it was suspected that its properties were markedly different from the common isotope, helium-4. | [History]
The development of nuclear fusion devices in the 1950s yielded workable quantities of pure helium-3 as a decay product from the large tritium inventory implicit in maintaining an arsenal of fusion weapons. | [Definition]
ChEBI: The stable isotope of helium with relative atomic mass 3.016029. The least abundant (0.000137 atom percent) isotope of naturally occurring helium. |
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