Idrogeno
Hidrógeno · Водород · هيدروجين · Wasserstoff · Hydrogen · Hydrogène · 水素 · 수소 · Hydrogenium · Waterstof · Wodór · Hidrogénio
| CAS | 1333-74-0 |
|---|---|
| EC | 215-605-7 |
| UN | 1049 |
| Formula | H2 |
| Massa molare | 2,016 g/mol |
| LIE (LEL) | 4,0 % vol |
| LSE (UEL) | 77,0 % vol |
| Temperatura di autoaccensione | 560 °C |
| Classe di temperatura | T1 |
| Gruppo di gas | IIC |
| Densità relativa del gas o del vapore (aria = 1) | 0,0696 |
| GHS | Pericolo · H220 |
Dihydrogen is an elemental molecule consisting of two hydrogens joined by a single bond. It has a role as an electron donor, an antioxidant, a fuel, a human metabolite and a member of food packaging gas. Hydrogen is a colorless, odorless gas. It is easily ignited. Once ignited it burns with a pale blue, almost invisible flame.