What Makes Natural Gas Smell?

Answer

Mercaptan is an acrid chemical that is usually put into natural gas to give it a pungent smell. This is done due to the fact that natural gas does not have its own unique scent hence the smell is added for safety reasons. A natural gas is a gas consisting primarily of methane which typically has 0-20% higher hydrocarbons hence it is highly flammable.
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1 Additional Answer
Natural gas has no odor on its own. The rotten egg smell that one gets from a natural gas leak is made by an odorant, called thiophane.
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Compressed natural gas (CNG) is a fossil fuel sometimes used by commercial and mass transportation vehicles. The gas is colorless and odorless, and it burns somewhat ...
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