Helium
CAS Number7440-59-7
FormulaHe
Mol. Weight4.00 g/mol
Helium
What is Helium?
Helium is a chemical compound with CAS number 7440-59-7 and molecular formula He. It is used in various industrial and research applications.
Specifications
Molecular Weight
4.00 g/mol
Assay/Purity
≥99.995%
Impurities
≤5 ppm oxygen
≤5 ppm water
Boiling Point
-268.934 °C(lit.)
−268.9 °C(lit.)
Safety Information
GHS04Signal Word
Warning
Hazard Statements
H280
Precautionary Statements
P410 + P403
Required PPE
Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US)
Melting Point
-272.2 °C(lit.)
EC Number
231-168-5
WGK Germany
3