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[Chemical Knowledge]：The Difference Between Ethylene and Hexadiene: Exploring the Properties and Applications of the Two Chemicals

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Ethylene (also known as ethylene, ethylene gas) is the simplest unsaturated hydrocarbon, the molecular formula is C2H4, structural formula is CH2 = CH2. It is a colorless gas with a pungent odor. Ethylene has a melting point of -169.2 ℃ and a boiling point of -103.7 ℃ at room temperature. It can be obtained from hydrocarbons in oil and natural gas through processes such as refining and cracking.

ethylene is a highly active olefin, and its chemical properties are open chain polymerization, addition reactivity and oxidation. Ethylene has two carbon-carbon double bonds in the molecule, making it very reactive. Ethylene can react with many substances, such as halogens, acids, bases, and oxygen. In addition, ethylene can be polymerized into polyethylene, which is used to make plastics, fibers and other synthetic materials.

hexadiene is a hydrocarbon containing two double bonds with the formula C6H10. It is a colorless liquid with a typical aromatic odor. Hexadiene has a boiling point of 59 to 61 ° C. and a density of 0.69g/cm3. It can be obtained by distillation of wood, petroleum, coal tar, etc.

hexadiene has a very special structure and chemical properties, so it has a wide range of applications in industry. It can react with ethylene to form a polymerizable polymer. This makes hexadiene an important raw material for the manufacture of synthetic rubber. In addition, hexadiene can also be halogenated to produce other compounds, such as hexamethylenediamine and the like.

ethylene and hexadiene have obvious differences in physical properties, structure and chemical properties. There are two carbon-carbon double bonds in the ethylene molecule, while there are four carbon-carbon double bonds in the hexadiene molecule, making their structures and properties different. Ethylene is a gas, while hexadiene is a liquid. In addition, ethylene has a higher reactivity, while hexadiene is more stable.

in industrial applications, ethylene is mainly used to make polyethylene, which is a widely used plastic material. Polyethylene is widely used in packaging, wire and cable, auto parts and other fields. The hexadiene is mainly used in the manufacture of synthetic rubber, such as styrene butadiene rubber, butadiene rubber, etc. Synthetic rubber has important and extensive applications in tire manufacturing and other rubber products.

ethylene and hexadiene as important chemicals, the development of human society and life has played a vital role. Ethylene, with its rich chemical reactivity, has become the basis of plastic, fiber and other synthetic materials, changing people's way of life. Hexadiene provides the necessary materials for the automobile industry and construction projects through the manufacture of synthetic rubber.

In summary, although both ethylene and hexadiene are olefinic chemicals, there are significant differences in their structures, properties and applications. By understanding their characteristics, we can better understand their importance in industrial production and daily life.

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