Ethylene R1150 application areas
Ethylene R1150 industrial field
Use: manufacturing plastics, synthesizing ethanol, acetaldehyde, synthetic fibers and other important raw materials
Ethylene CH2=CH2 is a plant hormone. Because it has the effect of promoting fruit ripening and is synthesized in large quantities before ripening, it is considered a ripening hormone. It can inhibit the thickening growth of stems and roots, the extension of young leaves, the growth of buds, and the formation of flower buds; on the other hand, it can promote the expansion growth of stems and roots, the formation of adventitious roots and root hairs, the germination of certain seeds, the upward growth, the aging or separation of the formation organs of the bud bend, etc. It can promote the flowering of pineapples and the growth of rice and water chickweed stems. The threshold of the effective gas concentration of almost all effects is 0.0-0.1 microliters/liter, and the maximum value is 1-10 microliters/liter. Some fungi and most higher plants can produce ethylene, and it can be produced in large quantities in ripe fruits. If the nutrient tissue is given auxin or various stresses (contact, disease damage, drug treatment, etc.), the production amount can surge. In the organism, methionine is biosynthesized, and its third and fourth carbons are converted to ethylene, but the nature of the synthesizing enzyme is unknown. α-keto-4-methylthiobutyric acid generated by deamination of methionine, or methylthiopropanal generated by further decarboxylation of the latter, effectively generates ethylene due to the action of peroxidase in the presence of hydrogen peroxide, sulfite, and monophenol, so it was once considered to be an intermediate in ethylene biosynthesis, but the existence of methylthiopropanal in the organism has not been confirmed. Mapson and Wardale (L. Mapson. D. Wardale) used the synergistic action of three enzymes, namely transaminase, peroxidase, and glucose oxidase supplied with hydrogen peroxide, in vitro to show the fact that ethylene is synthesized from methionine, but through experiments on isotope-labeled compounds, it is believed that this reaction system does not work in vivo. Ethylene can also be biosynthesized from substances other than methionine. The largest amount of ethylene is used in the production of polyethylene, accounting for about 45% of ethylene consumption; followed by ethylene dichloride and vinyl chloride produced from ethylene; ethylene oxidation to produce ethylene oxide and ethylene glycol. In addition, ethylene can be olefinized to produce styrene, ethylene oxidation to produce acetaldehyde, ethylene synthesis alcohol, and ethylene production of higher alcohols.
Main uses:
Ethylene is an important basic raw material for organic chemical industry, mainly used in the production of polyethylene, ethylene propylene rubber, polyvinyl chloride, etc.;
One of the most basic raw materials for petrochemical industry. In terms of synthetic materials, it is widely used in the production of polyethylene, vinyl chloride and polyvinyl chloride, ethylbenzene, styrene and polystyrene, and ethylene propylene rubber, etc.; in terms of organic synthesis, it is widely used in the synthesis of ethanol, ethylene oxide and ethylene glycol, acetaldehyde, acetic acid, propionaldehyde, propionic acid and its derivatives and other basic organic synthetic raw materials; after halogenation, it can produce vinyl chloride, ethyl chloride, ethyl bromide; after polymerization, it can produce α-olefins, and then produce higher alcohols, alkylbenzenes, etc.;
Mainly used as standard gas for analytical instruments in petrochemical enterprises;
Ethylene is used as environmentally friendly ripening gas for fruits such as navel oranges, tangerines, and bananas;
Ethylene is used in pharmaceutical synthesis and high-tech material synthesis.
Ethylene R1150 Ecological Field
The "triple response of ethylene": ① inhibit stem elongation; ② promote stem and root thickening; ③ promote stem lateral growth. Treating yellowed seedling stems with ethylene can make the stems thicker and the petioles grow upward.
Since ethylene can promote the synthesis of RNA and protein, and increase the permeability of cell membranes in higher plants and accelerate respiration, when the ethylene content in the fruit increases, the synthesized auxin can be decomposed by enzymes in the plant or external light, further promoting the transformation of organic matter and accelerating ripening. Commonly used ethephon solution to soak unripe tomatoes, apples, pears, bananas, persimmons and other fruits can significantly promote ripening.
Ethylene also has the effect of promoting organ shedding and aging. Ethylene plays an important role in the shedding of flowers, leaves and fruits.
Ethylene can also promote flowering and differentiation of female flowers in some plants (such as melons), and promote the discharge of latex in rubber trees and sumac trees.
Ethylene can also induce the formation of adventitious roots of cuttings, promote root growth and differentiation, break the dormancy of seeds and buds, induce the secretion of secondary metabolites, etc.
Ethylene R1150Agriculture field
Ethylene is an endogenous hormone in plants. All parts of higher plants, such as leaves, stems, roots, flowers, fruits, tubers, seeds and seedlings, will produce ethylene under certain conditions. It is the smallest molecule among plant hormones, and its physiological function is mainly to promote the expansion of fruits and cells. Grains mature, promote the shedding of leaves, flowers and fruits, and also induce flower bud differentiation, break dormancy, promote germination, inhibit flowering, organ shedding, dwarf plants and promote adventitious root formation.
Ethylene is a gas and is difficult to use in the field. It was not until the development of ethephon that practical ethylene plant growth regulators were provided for agriculture. The main products include ethephon, ethylene silicon, glyoxime, chloranil, defoliation phosphine, cycloheximide (actinomycin), all of which can release ethylene or promote the production of ethylene in plants, so they are collectively referred to as ethylene releasers. At present, the most commonly used one at home and abroad is ethephon, which is widely used in fruit ripening, cotton defoliation before harvest, promoting cotton boll cracking and boll opening, stimulating rubber latex secretion, rice dwarfing, increasing melon female flowers and promoting pineapple flowering.
There are also some varieties of ethylene plant growth regulators that regulate plant growth by inhibiting the synthesis of ethylene in plants, which are called ethylene synthesis inhibitors. There are no such products on the domestic market, so they are not introduced.
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