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Helium MeSH Descriptor Data 2022


MeSH Heading
Helium
Tree Number(s)
D01.268.613.350
D01.362.641.352
Unique ID
D006371
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D006371
Scope Note
A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics.
Entry Term(s)
Helium-4
Registry Number
206GF3GB41
Related Numbers
7440-59-7
CAS Type 1 Name
Helium
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2017/07/03
Helium Preferred
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