Helium-3
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Helium-3
structure -
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CAS No:
14762-55-1
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Formula:
He
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Chemical Name:
Helium-3
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Synonyms:
Helium,isotope of mass 3;Helium-3;3He;He 3
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CAS No:
Description
Helium-3 atom is the stable isotope of helium with relative atomic mass 3.016029. The least abundant (0.000137 atom percent) isotope of naturally occurring helium. It contains a helion.|Helium He-3 is under investigation in clinical trial NCT00846014 (Asthma Exacerbation and Helium-3 MRI).
Safety Information
UN1046 - class 2 - Helium, compressed
3
MH6520000
|Warning|H280 (100%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]|P282, P315, P336, P403, and P410+P403|Aggregated GHS information provided by 83 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Computed Properties
Molecular Weight:3.0160293220
Exact Mass:3.0160293220
Monoisotopic Mass:3.0160293220
Heavy Atom Count:1
Isotope Atom Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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