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[Chemical Knowledge]：Properties and Uses of Vinyl Acetate

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The properties and uses
of vinyl acetate
vinyl acetate (Vinyl Acetate, referred to as VAc), is an important organic chemical raw materials, the molecular formula is C4H6O2, the structure is CH3COOCH = CH2. Vinyl acetate has many unique properties and is widely used in the field of chemical production raw materials.

1. properties of vinyl acetate

1. Physical properties: vinyl acetate is a colorless transparent liquid, with pungent odor, 0.9312 relative density, melting point -93.2 ℃, boiling point 72.2 ℃, refractive index 1.3951, flash point (open cup)-17.8 ℃, ignition point 421.1 ℃, viscosity 0.45mPa · s. With ethanol, acetone, benzene, chloroform and other organic solvents miscible, slightly soluble in water.
2. Chemical properties: vinyl acetate contains carbon-carbon double bonds and ester groups in the molecule, so it has the chemical properties of olefins and esters. The carbon-carbon double bond can undergo addition reaction, oxidation reaction and polymerization reaction; the ester group can undergo hydrolysis reaction and alcoholysis reaction.

2. the use of vinyl acetate

vinyl acetate is an important monomer of many polymers, mainly used in the production of polyvinyl acetate (Polyvinyl Acetate, referred to as PVAc), ethylene-vinyl acetate copolymer (Ethylene Vinyl Acetate, referred to as EVA) and other polymers.

1. Polyvinyl acetate (PVAc):PVAc is a thermoplastic resin with good water resistance, oil resistance, acid resistance, alkali resistance, salt resistance and solvent resistance. PVAc can be used in the production of emulsions, adhesives, coatings, films and other products, widely used in construction, textile, paper, packaging, printing and other fields.
2. Ethylene-vinyl acetate copolymer (EVA):EVA is an elastomer material with good flexibility, impact resistance, weather resistance, chemical resistance and other properties. EVA can be used to make shoes, film, wire and cable, toys and other products, widely used in various fields.

In addition, vinyl acetate can also be used to produce other chemicals, such as acetic acid, ethanol, acetaldehyde, etc.

In conclusion, vinyl acetate, as an important organic chemical raw material, has broad application prospects in the field of chemical production raw materials.

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