Gasoline or diesel fuel are two flavors, but there are others that might sound unfamiliar - ethylene and propylene and xylene.
NPR: Energy Costs Drive Up Prices of Nearly Everything
The complex produced its first on-specification ethylene and propylene in late January this year.
FORBES: Magazine Article
With an e-cigarette your nicotine is delivered with propylene glycol and vegetable glycerin rather than tar and ash.
FORBES: Will E-cigarettes Become A Taxing Experience ?
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