Also called ethene, olefiant gas. a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of the ethylene series, usually obtained from petroleum and natural gas: used as an agent to improve the color of citrus fruits, in the synthesis of polyethylene, ethylene dibromide, ethylene oxide, and other organic compounds, and in medicine chiefly as an inhalation anesthetic.
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These rooms are then pumped with ethylene gas — the same gas emitted from fruit as they begin to ripen — to begin a uniformed ripening process.
A typical export terminal might have 50 tons of refrigerants on site, consisting of some combination of ethylene, propane, isobutane, isopentane or hexane.
The company has created a spin-off called LanzaJet and is working on other possible products such as converting ethanol to ethylene, which is used to make polyethylene for bottles and PEP for fibers used to make clothes.
NASA developed similar technology referred to as an ethylene “scrubber” in the mid-1990s to help with growing plants.
The prototypes are built from a recyclable flat foam-rubber called ethylene vinyl acetate (EVA).
“There are similarities between propylene glycol and ethylene glycol, the anti-freeze used in automobiles,” Dale said.
Such a solution is an absorbent of carbon monoxide; it also absorbs ethylene and acetylene.
The latter, known as ethylene-selenourea, may be classified also in the azole group as 2-iminotetrahydroselenazole (V).
A similar relation holds good between marsh gas and olefiant gas (ethylene).
This process consisted in blowing gaseous ethylene into liquid sulphur monochloride in large iron reaction vessels.
Ethylene burns with a bright luminous flame, and forms a very explosive mixture with oxygen.