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History of Ethylene - In 1795, ethylene gas was called olefin gas

In 1901, Niljubo identified the active component of gas, which was ethylene gas, but this was not known until 1934, when Johnny determined that plants could synthesize this gas, also in 1935, Crocker suggested that this gas can be used for the hormonal response to fruit ripening and aging of vegetative tissue

The first synthesis of ethylene gas compounds (dichlor and ethane) was performed in 1795 by a Dutch chemist

The discovery of Ethylene can be traced back to the 17th century when naturalists and scientists made observations regarding the effects of certain gases on plant and Fruit physiology. However, it wasn't until the 19th century that ethylene's significance began to be understood. In 1855, the French chemist Charles-Adolphe Wurtz first isolated ethylene by heating a mixture of ethanol and sulfuric acid. He named the gas "ethylene" based on its ability to form ethyl compounds, and he described its Chemical structure as a hydrocarbon with two carbon atoms and four hydrogen atoms.

In the late 19th century, the industrial use of ethylene started to emerge. Its flammable nature led to its adoption as a fuel gas for lighting, heating, and cooking in some cities. Ethylene was also used in the production of lamp mantles and as a welding gas. In the early 20th century, scientists began investigating the role of gases in plant physiology. In 1901, Dimitry Neljubow, a Russian botanist, discovered that ethylene gas caused the ripening of fruits and the abscission of leaves and flowers. This marked the initial understanding of ethylene as a plant hormone.

In 1795, ethylene gas was called olefin gas. The first synthesis of ethylene gas compounds (dichlor and ethane) was performed in 1795 by a Dutch chemist. In the middle of the 19th century, because C2H4 had a lower hydrogen than C2H5 ethyl, suffixes (ene) of Greek origin were added to the end of ethyl, and after that olefin gas is called ethylene gas. Until 1852, the word ethylene was used in scientific literatures. In 1866, the German chemist Hoffmann built his hydrocarbon naming system on alkanes. In this system, any hydrocarbon that has two hydrogens less than the corresponding alkane is called a CnH2n alkene, and if it has four hydrogens less than the corresponding alkane, it is called a CnHn alkene.

According to this naming, ethylene was renamed to ethene. The International Society of Chemists introduced the name IUPAC in 1892, and since then, the name has been used in scientific texts and textbooks. The hormonal effects of ethylene on the general growth of plants were first observed in 1864, when gas leakage in street lighting systems led to stunted growth and deformation in nearby plants. In 1901, Niljubo identified the active component of gas, which was ethylene gas, but this was not known until 1934, when Johnny determined that plants could synthesize this gas, also in 1935, Crocker suggested that this gas can be used for the hormonal response to fruit ripening and aging of vegetative tissue.

The commercial production of ethylene began in the 1930s with the development of steam cracking, a process that involves breaking down hydrocarbon molecules under high temperatures. This method allowed for large-scale production of ethylene from petroleum-based feedstocks. The mid-20th century witnessed significant advancements in the Petrochemical industry, leading to increased production and diversification of ethylene derivatives. Ethylene became a vital raw material for the production of various plastics, synthetic fibers, solvents, and chemicals.

In subsequent decades, research on ethylene expanded, leading to a deeper understanding of its role as a plant hormone and its impact on plant growth and development. This knowledge has been applied to agriculture, horticulture, and post-harvest management techniques to optimize fruit ripening, delay senescence, and enhance storage life. In recent years, there have been ongoing efforts to improve ethylene production processes, explore alternative feedstocks, and develop sustainable methods. Additionally, advancements in genetic engineering and biotechnology have led to the development of ethylene-insensitive plants and modified ethylene production in crops, offering potential benefits in agriculture.

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