Hydrogen

Hydrogen uses and applications include: Hydrogenation of vegetable and animal oils; antioxidant for metals; welding and cutting; petrol. refining; production of ammonia, ethanol, methanol, aniline, hydrogen chloride, and some inorganic acids; rocket and missile fuel; hydrogenolysis of coal; reducing agent for organic synthesis and metallic ores; reducing atmosphere to prevent oxidation; atomic-hydrogen welding; instrument-carrying balloons; cryogenic research; food additive