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étymologie

Qu'est-ce (qui) est ethylene - définition

CHEMICAL COMPOUND

C2h4; Ethylenes; C2H4; CH2CH2; Ethene; C=C; Olefiant gas; Ethenes; Ethylene-ripened fruits; Bicarburetted hydrogen; Elayl; Etherin; Draft:Cycloethane; Ethylene group

ethylene

['???li:n, -?(?)l-]

¦ noun Chemistry a flammable hydrocarbon gas of the alkene series, occurring in natural gas and coal gas; ethene. [C₂H₄.]

Ethylene

·noun A colorless, gaseous hydrocarbon, C₂H₄, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), - hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen.

Olefiant Gas

A compound gas; C2H4; composed of carbon, 24; hydrogen, 4; molecular weight, 28; specific gravity, .981. It is a dielectric of about the resistance of air. Its specific inductive capacity at atmospheric pressure is 1.000722 (Boltzman.) Synonym--Ethene; heavy carburetted hydrogen. [Transcriber's note: Also called ethylene. A primary use is polyethylene plastic.]

Wikipédia

Ethylene

Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C₂H₄ or H₂C=CH₂. It is a colourless, flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene (a hydrocarbon with carbon-carbon double bonds).

Ethylene is widely used in the chemical industry, and its worldwide production (over 150 million tonnes in 2016) exceeds that of any other organic compound. Much of this production goes toward polyethylene, a widely used plastic containing polymer chains of ethylene units in various chain lengths. Ethylene is also an important natural plant hormone and is used in agriculture to force the ripening of fruits. The hydrate of ethylene is ethanol.

https://en.wikipedia.org/wiki/Ethylene

Exemples du corpus de texte pour ethylene

1. The Beaumont Enterprise reported that the pipeline carries ethylene.

2. Project Management and Development Company awarded the contract to construct the plant, which will produce '00,000 tons of oxide ethylene and glycol ethylene a year.

3. "Ex–Im Bank has financed a number of projects to develop Qatar‘s oil and gas sector, and we look forward to supporting U.S. exports to other sectors of the Qatari economy as well." Qatar Chemical Company II will build an ethylene cracker in Ras Laffan that will convert ethane to ethylene, a large integrated petrochemical facility in Mesaieed to process the ethylene into high–density polyethylene and normal alpha olefin products, and a pipeline to transport the ethylene to the petrochemical facility.

4. It costs SABIC between $250 and $300 to produce a ton of ethylene.

5. A ministry statement said domestic contractors would build the ethylene production facility.