1、VINYL ACETATE——含义、同义词和翻译
全面了解英语单词“VINYL ACETATE”的所有含义：定义、翻译、同义词、发音、示例和语法分析——所有内容尽在完整资源中。
2、vinyl acetate是什么意思_vinyl acetate的翻译_音标_读音_用法
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3、Vinyl acetate
Define vinyl acetate. vinyl acetate synonyms, vinyl acetate pronunciation, vinyl acetate translation, English dictionary definition of vinyl acetate. n a colourless volatile liquid unsaturated ester that polymerizes readily in light and is used for making polyvinyl acetate.
VINYL ACETATE
Vinyl acetate definition: monomer used in making polyvinyl acetate. Check meanings, examples, usage tips, pronunciation, domains, related words.
VINYL ACETATE
noun (mass noun) (Chemistry) a colourless liquid ester used in the production of polyvinyl acetate and other commercially important polymers Chemical formula: CH2CHOCOCH3 Examples Acetylene or ethyne is used to also make vinyl chloride and vinyl acetate, both of which are converted to polymers.
vinyl acetate是什么意思_vinyl acetate怎么翻译及发音_用法
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英文名称：Vinyl acetate 英文别名： Acetic acid vinyl ester; ethenyl acetate; Vinyl Acetate Monomer; VINYL ACETATE MONOMER CAS号：108-05-4 EINECS号：203-545-4 分子式：C4H6O2 分子量：86.0892 InChI：InChI=1/C4H6O2/c1-3-6-4 (2)5/h3H,1H2,2H3 分子结构： 密度：0.924g/cm3 熔点：-93℃ 沸点：72.5°C at 760 mmHg
VINYL ACETATE
一种具有刺激性气味的无色液体，它是聚乙酸乙烯酯的前体，它是工业中的重要聚合物。 Vinyl acetate is an organic compound with the formula CH3CO2CHCH2. A colorless liquid with a pungent odor, it is the precursor to polyvinyl acetate, an important polymer in industry. 阅读更多
Vinyl acetate
Vinyl acetate (CAS 108-05-4) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
Vinyl acetate
vinyl acetate, colourless, liquid organic compound, the polymer of which is polyvinyl acetate (q.v.).
The chemistry of chemical reactions is a complex interplay between atoms and molecules, governed by principles that are both fascinating and often counterintuitive. Among the myriad of organic compounds, one particular class of compounds stands out for their unique properties and wide-ranging applications: esters, particularly vinyl acetate (commonly known as acetic ester). This versatile compound not only has a rich history in the culinary arts but also plays a crucial role in various industrial processes. In this article, we will explore the nature of vinyl acetate, its synthesis, and its diverse applications.
Properties of Vinyl Acetate
Vinyl acetate, also referred to as an acetic ester, is a polar compound with a characteristic acidic nature due to its ester functional group (-OAc). Its melting point is approximately 15°C, rendering it a liquid at room temperature, while its boiling point is slightly higher at around 240°C. The molecular structure features an aromatic ring attached to an aliphatic carbonyl group, with the ester bond exhibiting weak acidity and susceptibility to hydrolysis.
Synthesis of Vinyl Acetate
Vinyl acetate can be synthesized through various pathways, including reactions involving alcohols, acids, or ketones. The most common method involves the reaction of an alcohol (e.g., ethanol) with acetic anhydride in the presence of a catalyst such as concentrated sulfuric acid or pyridine. The reaction proceeds via the formation of a carbocation intermediate, which subsequently collapses to form the ester bond. The resulting product is typically a colorless oil that solidifies upon cooling.
Applications of Vinyl Acetate
Vinyl acetate boasts numerous applications across industries and daily life. A primary use is as a food preservative, where it inhibits bacterial and mold growth in food products. It is also integral to the production of pharmaceuticals, cosmetics, and perfumes, leveraging its fragrance properties derived from the reactivity of the ester bond with water and other chemicals.
In industrial settings, vinyl acetate serves as a solvent for organic compounds like oils and fats. It is employed in manufacturing synthetic resins, plasticizers, and lubricants. Additionally, it is a key component in producing polyvinyl acetate, a material widely used in packaging and film production.
Beyond practical utility, vinyl acetate holds cultural significance. In ancient times, it was revered as sacred due to its association with the Greek goddess Athena, worshipped in Athens. The Greeks believed vinyl acetate could purify the body and mind, leading to enlightenment and spiritual awakening. Today, it remains a cherished ingredient in traditional recipes and cooking methods, reflecting its enduring cultural importance.
Challenges and Future Prospects
Despite its widespread use, the production of vinyl acetate faces challenges such as environmental impact and high energy consumption. Traditional synthesis methods often require elevated temperatures and pressures, leading to harmful emissions and waste. The use of concentrated sulfuric acid as a catalyst raises safety and environmental concerns.
To address these issues, research is advancing toward sustainable production methods, including biocatalytic synthesis using microbial enzymes. These eco-friendly approaches aim to reduce waste and improve energy efficiency, shaping the future of the industry.
Vinyl acetate, with its distinctive properties and broad applications, remains a cornerstone of science and industry. From its origins as a simple organic compound to its modern role as an industrial powerhouse, it continues to evolve. As sustainable production methods develop, vinyl acetate is poised to inspire even more innovative applications, deepening our understanding of this remarkable compound.
