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> Overview
| Products
| Gases
Helium is used to purge and pressurize the liquid
hydrogen fuel systems of rockets and spacecraft.
This is possible because of helium's low solubility,
low boiling point -452°F (-269°C) and inertness.
It is the only inert substance that remains a gas
in such low temperature environments.
Hydrogen is used to fuel spacecrafts, and to power
their life-support systems and computers -- yielding
drinkable water as a by-product.
Oxygen is used as an oxidizer to support combustion
for RP1 or LH2 fueled rockets.
Nitrogen is used as a pressuring and purging agent
for temperatures above -32°F.
The space program uses liquid neon as a coolant
for ultra-sensitive infrared imaging and detection
equipment.
Xenon is a rare gas that is used as an optimum fuel
for electric propulsion systems.
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