What is vinyl acetate?
Vinyl acetate is used to make other industrial chemicals. These chemicals are used mainly to make glues for the packaging and building industries. They are also used to make paints, textiles, and paper. Vinyl acetate is also used as a coating in plastic films for food packaging and as a modifier of food starch.
What is vinyl acetate made of?
Vinyl acetate is prepared from ethylene by reacting it with oxygen and acetic acid over a palladium catalyst. The basic chemical reaction is shown below, along with the chemical structure of vinyl acetate monomer. Vinyl acetate, a colorless liquid with a pungent odor, is rarely used in its pure form.
How do you make vinyl acetate?
Almost all vinyl acetate now is produced via the vapor-phase reaction of ethylene and acetic acid over a noble-metal catalyst, usually palladium. The reaction is typically carried out at 175–200 ºC and 5–9 bar pressure.
Is vinyl acetate a solvent?
Vinyl acetate monomer is soluble in most organic solvents including chlorinated solvents , but is not soluble in water. Vinyl acetate monomer is easily polymerized with acrylate esters to produce polymers.
What is PVA glue made of?
PVA is a colorless, usually nontoxic thermoplastic adhesive prepared by the polymerization of vinyl acetate. PVA was discovered in 1912 by Dr. Fritz Klatte in Germany. It is one of the most widely used water-dispersed adhesives.
How do you make vinyl acetate monomer?
In vapor-phase acetoxylation, vinyl acetate monomer (VAM) is produced in the gas phase by reacting acetic acid, oxygen, and ethylene in the presence of an alumina- or silica-supported palladium catalyst in conjunction with gold along with an alkali metal.
What is acetate plastic?
Acetate is a plastic-like material formed from nylon, making it more durable, flexible, and stronger than conventional plastic. It is also more resistant to pressure and can bend further before breaking.
What is the pH of vinyl acetate?
7
Pricing & Availability
| Applications | |
|---|---|
| Application | Vinyl acetate (stabilised) for synthesis. CAS 108-05-4, pH 7 (20 g/l, H₂O, 20 °C). |