chempirical

Liquid hydrogen

H2CAS 1333-74-02.02 g/mol

Open in Covalent MOL file
HH

Properties

Molecular formula
H2
Molar mass
2.02 g/mol
Exact mass
2.0157 Da
Density
0.08 g/mL
Melting point
−259.2 °C
Boiling point
−252.77 °C
Water solubility
1.62 mg/L (21 °C)
logP
0.25Crippen estimate
Polar surface area
0.0 Ų
H-bond donors / acceptors
0 / 0
Rotatable bonds
0

Hazards

Danger
Flammable (GHS02)Compressed Gas (GHS04)

Harmonised EU classification (CLP Annex VI, index 001-001-00-9), via PubChem.

Precautionary statements

P203, P210, P222, P280, P377, P381, P403

Identifiers

CAS number
1333-74-0
SMILES
[HH]
InChIKey
UFHFLCQGNIYNRP-UHFFFAOYSA-N
InChI
InChI=1S/H2/h1H

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

10 names
  • Hydrogen
  • Orthohydrogen
  • Parahydrogen
  • Hydrogen (H2)
  • Hydrogen molecule
  • Molecular hydrogen
  • Mol. hydrogen
  • Dihydrogen
  • Hydrogen gas
  • Hydrogen element

Work with Liquid hydrogen

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Deuterium7782-39-0

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia