Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula H₂. It is colorless, odorless, tasteless, non-toxic, and highly combustible.
Oil refineries use hydrogen to make lower sulphur, cleaner burning transport fuels to reduce air pollution, and the metals industries use hydrogen to reduce metal oxides and to prevent oxidation during heat-treating process.
Hydrogen is used in semiconductor manufacturing to reduce atmospheres. In the chemical, pharmaceutical and food industries, hydrogenation processes are used to combine hydrogen molecules with other compounds.
Fine Gas offers High purity Hydrogen having purity 99.999% in specially designed H-Rated European Steel Cylinders.
Properties of Hydrogen
| Group | 1 | Melting point | −259.16°C, −434.49°F, 13.99 K |
| Period | 1 | Boiling point | −252.879°C, −423.182°F, 20.271 K |
| Block | s | Density (g cm−3) | 0.000082 |
| Atomic number | 1 | Relative atomic mass | 1.008 |
| State at 20°C | Gas | Key isotopes | 1H, 2H |
| Electron configuration | 1s1 | CAS number | 133-74-0 |
