7440-59-7 Helium

Name: Helium
Synonyms: Atomichelium; Helium-4; o-Helium; p-Helium
CAS Number:7440-59-7
Molecular Formula:He
Molecular Weight:4.0026
EINECS:231-168-5
Density:0.1785（0℃）
Boiling Point:-268.934 °C(lit.)
Flash Point:none
Safety Description:A simple asphyxiant. A nonflammable gas. See ARGON for a description of simple asphyxiants.
liansport Information:UN 1046