Helium

CAS Registry Number®

7440-59-7
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CAS Name

Helium

Molecular Formula

He

Cite this Page

Helium.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?ref=7440-59-7 (retrieved 2024-02-26) (CAS RN: 7440-59-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    -268.9 °C
  • Melting Point (2)

    -272.2 °C
  • Density (3)

    3.13 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/He

InChIKey

InChIKey=SWQJXJOGLNCZEY-UHFFFAOYSA-N

SMILES

[He]

Canonical SMILES

[He]

Other Names for this Substance

  • Helium
  • Helium-4
  • o-Helium
  • p-Helium
  • Atomic helium

Deleted or Replaced CAS Registry Numbers

494798-31-1, 1312815-28-3

CAS INSIGHTSTM
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