Bibliothèque des gaz et solvants
Hydrogène
Hidrógeno · Водород · هيدروجين · Wasserstoff · Hydrogen · Idrogeno · 水素 · 수소 · Hydrogenium · Waterstof · Wodór · Hidrogénio
| CAS | 1333-74-0 |
|---|---|
| EC | 215-605-7 |
| UN | 1049 |
| Formule | H2 |
| Masse molaire | 2,016 g/mol |
| LIE (LEL) | 4,0 % vol |
| LSE (UEL) | 77,0 % vol |
| Température d'auto-inflammation | 560 °C |
| Classe de température | T1 |
| Groupe de gaz | IIC |
| Densité relative du gaz ou de la vapeur (air = 1) | 0,0696 |
| GHS | Danger · 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.