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[Chemical Knowledge]：Ethylene and butene: Subtle differences in chemical structure

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Ethylene and butene are both important chemicals and have a wide range of applications in the chemical industry. Although they have the same "ene" in their names, there are subtle differences in their chemical structures.

from the naming point of view, their difference is obvious. Ethylene is an olefin with 2 carbon atoms and the chemical formula is C2H4; while butene is an olefin with 4 carbon atoms and the chemical formula is C4H8. As can be seen, there is a clear difference in the number of carbon atoms between ethylene and butene.

from the molecular structure, ethylene and butene have different arrangements of carbon atoms. There are two carbon atoms in the ethylene molecule, which are connected by a double bond, while there are four carbon atoms in the butene molecule, which are also connected by a double bond. However, the arrangement of the carbon atoms of butene is more complex, and there are different isomers.

Furthermore, ethylene and butene differ in their physical properties. Ethylene is a colorless, pungent gas that burns but is insoluble in water. Butene, on the other hand, is a flammable liquid that is miscible with many organic solvents.

from the application field, the use of ethylene and butene is not the same. Ethylene is mainly used in the synthesis of ethylene monomer, so as to prepare polyethylene and other plastic products; butylene is mainly used in the synthesis of synthetic rubber and synthetic resin, more widely used.

Generally speaking, ethylene and butene are two different chemical substances in chemical structure, properties and uses. For chemical practitioners, understanding the difference between them helps to better choose the right raw materials and improve production efficiency. At the same time, for ordinary people, understanding the difference between ethylene and butylene also helps to better understand the mysteries of the chemical world.

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