LH2: Meaning (information, definition, explanation, facts)

LH2 is an acronym used in the aerospace industry, which stands for Liquid Hydrogen. Hydrogen is found naturally in the H₂ form, thus the name. LH2 is a common liquid fuel for rocket applications.

Liquid hydrogen has a very low density of 70.8 kg/m³ (at 20 K), so storage tanks for it have to be quite large.