John Douglass, a 52 year old male from the Internet asks on March 15, 2000,Hexane seeps out of the ground at old sites of underground gasoline storage tanks. Can I smell this hexane?
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Yes. Hexane has a characteristic aromatic odour similar to cleaning solvent, paint thinner, gasoline and related compounds. The Merck Manual calls it a "faint, peculiar odour". It is definitely not odourless.
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