[Chemical Knowledge]：What is Olefin?

Read： 874 Time：18months ago Source：Transform the World with Simplicity

Olefin is an important organic compound and one of the basic contents in the field of chemistry. This article will introduce the definition, structure, properties and applications of olefins.

Definition of 1. Olefins

olefins are a class of hydrocarbon compounds containing a carbon-carbon double bond (C = C), also known as unsaturated hydrocarbons, corresponding to saturated hydrocarbons such as alkanes. Olefins are classified into alkenes and cycloolefins. The structural
of

2. olefins
contain at least one carbon-carbon double bond in the olefin molecule, with the chemical formula CnH2n, where n is the number of carbons in the double bond. The double bond gives the alkene a very special morphology, which can fix a certain conformation in space, such as cis-trans isomers. Cyclic olefins can exist in a variety of isomers because of the uncertainty of the position of the double bond.

3. the nature of olefins

1. chemical reaction

olefins because of its double bond structure, with different chemical reactivity from saturated hydrocarbons. For example, olefins can undergo addition reactions, oxidation reactions, polymerization reactions, and the like.

2. Physical Properties The physical properties of

olefins are affected by double bonds, have lower boiling points and melting points, are volatile, and can be dissolved in non-polar solvents (such as benzene and petroleum ether).

3. Conditional stability

olefins are more reactive than alkanes due to the presence of double bonds, and are prone to polymerization reactions. They need to be stored, transported and processed under certain conditions (such as low temperature and low oxygen).

4. the application
of olefins
Due to the double bond structure and chemical reaction properties of olefins, they are widely used in industry, agriculture, medicine and other fields.

1. Chemical industry

olefins are important primary raw materials for chemical industry, such as propylene, ethylene and other polymers, plastics, synthetic rubber, synthetic fibers, etc.

2. Fuel Industry

olefins can be used to make oxygenated fuels and ether fuels with high energy density and combustion efficiency.

3. agricultural

synthesis of olefin derivatives can be used as biological pesticides, sterilization, insecticidal, regulation, improve crop yield and quality.

4. medical

some molecules containing olefin structure can be used to prepare drugs, such as allyl monomer can be used to prepare a variety of biological materials, cell engineering, medical diagnostic reagents and drugs.

In summary, as a class of unsaturated, chemically reactive organic compounds, olefins have a wide range of applications. Therefore, the in-depth study and application of olefin-related knowledge will have a positive impact on human industrial and agricultural production and the development of science and technology.