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étymologie

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

CHEMICAL COMPOUND

Ethyne; Ethine; Dissolved acetylene; C2h2; HCCH; Kucherov reaction; Acytelene; Acetylene gas; C₂H₂; H2C2; Acetelyne; Carbide gas; H-C≡C-H; Acetyline

acetylene

Acetylene is a colourless gas which burns with a very hot bright flame. It is often used in lamps and for cutting and welding metal.

N-UNCOUNT: oft N n

acetylene

[?'s?t?li:n]

¦ noun Chemistry a toxic hydrocarbon gas which burns with a bright flame, used in welding and formerly in lighting; ethyne. [C₂H₂.]

Origin

C19: from acetic acid + -yl + -ene.

Acetylene

·noun A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant.

Wikipédia

Acetylene

Acetylene (systematic name: ethyne) is the chemical compound with the formula C₂H₂ and structure H−C≡C−H. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine.

As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°.

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

Exemples du corpus de texte pour acetylene

1. The canisters held acetylene and propane gas, said Texas Commission on Enviornmental Quality spokeswoman Andrea Morrow.

2. Propane and acetylene tanks found in the car were related to the man‘s construction work, she said.

3. There are dark rooms and laboratories, acetylene lamps ready for lighting, even the halters and hay bales for Oates‘s horses.

4. Marek Ryciak lives only blocks away from Southwest Industrial Gases Inc., a facility that sells acetylene gas.

5. In the document, Barot considered different types of gases including propane, butane, acetylene, oxygen, hydrogen and methane.