Hydrogen
CAS Registry Number®
1333-74-0
CAS Name
HydrogenMolecular Formula
H2Molecular Mass
2.02Cite this Page
Hydrogen. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. http://commonchemistry.cas.org/detail?ref=1333-74-0 (retrieved ) (CAS RN: 1333-74-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).Compound Properties
Boiling Point (1)
-252.77 °CMelting Point (2)
-259.2 °CDensity (3)
8.99 x 10⁻⁵ g/cm³ @ Temp: STP; Press: STP
Source(s)
- (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
- (2) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)
- (3) Kloeppel, S.; IOP Conference Series: Materials Science and Engineering, (2017), 171, 012019/1-012019/6, CAplus
Other Names and Identifiers
InChI
InChI=1S/H2/h1H
InChIKey
InChIKey=UFHFLCQGNIYNRP-UHFFFAOYSA-N
SMILES
[H][H]
Canonical SMILES
[H][H]
Other Names for this Substance
- Hydrogen
- Orthohydrogen
- Parahydrogen
- Hydrogen (H2)
- Hydrogen molecule
Deleted or Replaced CAS Registry Numbers
725200-57-7
