Gas products
Hydrogen
Hydrogen
Chemical formula: H2, hydrogen is an extremely flammable, colorless, transparent, odorless and tasteless gas. Hydrogen is the densest gas known in the world, being only 1/14 as dense as air. At normal temperature and pressure, gaseous hydrogen does not react with most substances. However, hydrogen reacts catalytically with many acetylenes at higher pressures and moderate temperatures. The normal boiling point of liquid hydrogen is-252.8℃, which is the lowest temperature gas except helium.