헬륨
Hélium · Helium · Гелий · Гелий · Hélio · Heliu · Хелијум · Helium · Гелий · Elio · هلیوم · Hélium
| CAS | 7440-59-7 |
|---|---|
| EC | 231-168-5 |
| UN | 1963 |
| 화학식 | He |
| 몰질량 | 4.0026 g/mol |
| 가스 또는 증기의 상대밀도(공기 = 1) | 0.138 |
| GHS | 경고 · H280, H281 |
Helium(0) is a monoatomic helium. It has a role as a NMR chemical shift reference compound and a member of food packaging gas. Helium appears as a colorless, odorless, noncombustible gas. Can asphyxiate. Inhalation causes the voice to become squeaky (Mickey Mouse voice).