هلیوم
Hélium · Helium · Гелий · 헬륨 · Гелий · Hélio · Heliu · Хелијум · Helium · Гелий · Elio · Hélium
| CAS | 7440-59-7 |
|---|---|
| EC | 231-168-5 |
| UN | 1963 |
| فرمول | He |
| جرم مولی | ۴٫۰۰۲۶ g/mol |
| چگالی نسبی گاز یا بخار (هوا = 1) | ۰٫۱۳۸ |
| GHS | هشدار · 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).