Hydrogen (H) is the most abundant chemical substance in the universe. Pure hydrogen gas (H2) is scarce in the Earth’s atmosphere as it is lighter than air.
How is Hydrogen produced?
Heating natural gas with steam forms a mixture of hydrogen and carbon monoxide. Separating this produces hydrogen. Several industrial processes use hydrogen, including the petroleum and chemical industries.
What are the health risks and environmental effects of Hydrogen?
High concentrations of hydrogen are used to process or upgrade fossil fuels and produce ammonia for fertilizer applications. As it is lighter than air, hydrogen is also used to lift airships and balloons. Other industrial applications include being:
Used as a coolant
A shielding gas in welding
A tracer gas for leak detection
Within the semiconductor industry
Hydrogen gas can be hazardous to human safety as it is highly flammable when mixed with air.
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