helium

Suppliers

Names

[ CAS No. ]:
7440-59-7

[ Name ]:
helium

[Synonym ]:
EINECS 231-168-5
helium
MFCD00011031

Chemical & Physical Properties

[ Density]:
0.1785（0ºC）

[ Boiling Point ]:
-268.934ºC(lit.)

[ Melting Point ]:
-272.2ºC(lit.)

[ Molecular Formula ]:
He

[ Molecular Weight ]:
4.00260

[ Flash Point ]:
none

[ Exact Mass ]:
4.00260

[ Vapour density ]:
0.14 (vs air)

[ Stability ]:
Stable; extremely unreactive.

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MH6520000
CHEMICAL NAME :
Helium
CAS REGISTRY NUMBER :
7440-59-7
LAST UPDATED :
199712
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
He

Safety Information

[ Risk Phrases ]:
R9

[ Safety Phrases ]:
S9

[ RIDADR ]:
UN 1046

[ WGK Germany ]:
3

[ RTECS ]:
MH6520000

[ Hazard Class ]:
2.2

[ HS Code ]:
2804290000

Customs

[ HS Code ]: 2804290000

Related Compounds

  • Helium
  • helium
  • helium-3
  • helium(•1+)
  • helium,neon
  • helium,xenon
  • Methyl 3-(ethenyloxy)cyclobutane-1-carboxylate
  • 5-Oxo-3-propyl-2,5-dihydrofuran-2-yl 4-methylbenzene-1-sulfonate
  • 2-(2-Fluoro-6-methoxy-4-methylphenyl)-2-methylpropan-1-amine
  • 3-[2-(Dimethylamino)-5-fluorophenyl]prop-2-en-1-ol
  • 2-[(3S)-3-aminobutyl]-4-fluoro-N,N-dimethylaniline
  • 2-chloro-N-methyl-N-(pyrrolidin-3-yl)pyrimidine-5-carboxamide
  • 1-[2-(2,3,4-Trifluorophenyl)propan-2-yl]cyclopropan-1-amine
  • (5-Bromo-2-iodophenyl)methyl 4-methylbenzene-1-sulfonate
  • 3-(4-Methoxy-2-methylphenyl)-2,2-dimethylpropan-1-amine
  • 3-{3-bromo-4-chloro-1H-pyrazolo[3,4-d]pyrimidin-1-yl}azetidine
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