1、Computational study on the mechanism and kinetics of Cl
Two reaction types (Cl-addition and H-abstraction) and the subsequent reactions for the primary intermediates (IM1 and IM2) have been proposed in the presence of O 2 and NO. The calculated results show that the Cl addition–elimination mechanism dominates the reaction between vinyl acetate and Cl.
2、The preparation and analysis of chlorinated ethylene vinyl acetate
In this article, the feasibility of preparing chlorinated ethylene vinyl acetate copolymer (CEVA) in gas–solid phase is investigated. Furthermore, the structure of the chlorination product and its performance as a coating material are also analyzed.
3、Introduction to the production process of vinyl acetate
Vinyl acetate monomer (VAM) is flammable and reacts rapidly with chlorine, bromine, and ozone. There are two production process routes for vinyl acetate monomer: the ethylene method and the acetylene method.
4、Chlorination of vinylacetate to form Chloroacetaldehyde
Chlorine is first added to vinylacetate at room temperature with cooling to form 1,2-dichlororethylacetate, which is then hydrolyzed at 50-60°C to form chloroacetaldehyde.
5、Mechanistic and kinetic study of the gas
The reaction mechanisms of vinyl acetate with O 3 are investigated by performing Density Functional Theory (DFT) calculations as an attempt to investigate the photooxidation reaction of acetate in the atmosphere.
OPTIMIZATION OF VINYL ACETATE PRODUCTION PROCESS
First, ethylene undergoes an oxy-acetylation reaction by forming vinyl acetate. The standard heat of this reaction is minus 176.2 kJ/mol. The previous technologies of synthesis are based on...
Vinyl acetate and vinyl chloride: differences between two common chemicals
This article explores the differences between two common chemicals, vinyl acetate and vinyl chloride, including their properties, preparation methods, and application areas. Through in-depth comparison, we can better understand their respective characteristics and uses.
Vinyl Acetate Formation by the Reaction of Ethylene with Acetate
The reaction pathway of vinyl acetate synthesis is scrutinized by reacting gas-phase ethylene (at an effective pressure of 1 × 10 -4 Torr) with η 2 -acetate species (with a coverage of 0.31 ± 0.02 monolayer) on a Pd (111)−O (2×2) model catalyst surface in ultrahigh vacuum.
Study of Vinyl Acetate Partitioning in Emulsion
In this study emulsion copoly-merization of vinyl chloride with vinyl acetate with a weight ratio of 85/15 was performed and vinyl acetate partitioning in the copolymerization reaction was investi-gated using HNMR and FTIR spectroscopy of withdrawn samples at different reaction times and conversions and the results were compared with those ...
Computational study on the mechanism and kinetics of Cl
Two reaction types (Cl-addition and H-abstraction) and the subsequent reactions for the primary intermediates (IM1 and IM2) have been proposed in the presence of O 2 and NO. The calculated results show that the Cl addition–elimination mechanism dominates the reaction between vinyl acetate and Cl.
Chemical Reactions: Universal Phenomena and the Case of Vinyl Acetate-Chlorine Interaction
Chemical reactions are among the most universal and fascinating phenomena in nature. Among them, the reaction between vinyl acetate and chlorine gas stands out due to its unique properties and widespread applications. This article delves into the mechanisms, products, and practical significance of this reaction, aiming to provide insights and references for researchers in the field of chemistry.
1. Overview of the Reaction Between Vinyl Acetate and Chlorine Gas
Vinyl acetate is a critical organic compound widely used as a plastic additive and plasticizer. its chemical instability makes it prone to various reactions. Chlorine gas, a potent oxidizing agent, reacts with numerous substances, including vinyl acetate. When these two interact, a series of chemical transformations occur, yielding novel compounds.
2. Mechanisms of the Vinyl Acetate-Chlorine Reaction
The reaction proceeds in two distinct stages: pre-chlorination and main chlorination.
1. Pre-Chlorination Stage
In this initial phase, chlorine gas reacts with vinyl acetate to form chloroethyl acetate. This exothermic reaction releases significant heat. During this process, hydrogen atoms in chloroethyl acetate are substituted by chlorine, producing chloroacetic acid.
2. Main Chlorination Stage
As the reaction progresses, chloroacetic acid undergoes further chlorination with chlorine gas, generating more chlorinated derivatives. This continuous process persists until all reactive sites in vinyl acetate are exhausted. Notably, hydrogen chloride (HCl) gas—an alternative form of chlorine—is released throughout the reaction.
3. Reaction Products
The primary products of the vinyl acetate-chlorine reaction are chloroacetic acid and hydrogen chloride gas. Secondary byproducts, such as chloroform (CHCl₃) and vinyl chloride (CH₂=CHCl), may also form. These compounds vary in toxicity and corrosiveness, requiring cautious handling and disposal.
4. Practical Applications of the Reaction
The products of this reaction hold substantial industrial value. For instance:
- Chloroacetic acid serves as a precursor for pesticides, dyes, and pharmaceuticals.
- Hydrogen chloride gas is utilized in hydrochloric acid production and bleach manufacturing.
- Byproducts like chloroform and vinyl chloride are foundational materials in chemical synthesis.
The reaction between vinyl acetate and chlorine gas epitomizes a classic organic transformation. It not only illuminates fundamental chemical principles but also offers practical utility across industries. By studying this reaction, researchers can deepen their understanding of organic reaction dynamics, guiding future scientific and applied advancements.
Key Terminology
- Vinyl acetate: 醋酸乙烯酯
- Chlorine gas: 氯气
- Chloroethyl acetate: 氯代醋酸乙烯酯
- Chloroacetic acid: 氯代乙酸
- Hydrogen chloride (HCl): 氯化氢
- Chloroform: 氯仿
- Vinyl chloride: 氯乙烯
