Vinyl Acetate Monomer (VAM)

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Vinyl Acetate Monomer (VAM)

Vinyl Acetate Monomer (VAM)

Overview

Vinyl Acetate Monomer (VAM) is a colorless flammable liquid with sweet ether flavor. Melting point -93.2 °C, boiling point 72.2 °C, 47 °C (40kPa), 9 °C (6.827kPa), -18 °C (1.33kPa), relative density 0.9317, refractive index 1.3953, flash point (open cup) -1 °C.

There are several different raw materials such as acetylene method, ethylene method, acetaldehyde acetic anhydride and so on. The route of ethylene raw materials is different according to the process, and there are different methods such as ethylene gas phase method and ethylene liquid phase method.

 

 

 

General properties

Vinyl Acetate Monomer (VAM) is miscible with ethanol, soluble in ether, acetone, chloroform, carbon tetrachloride and other organic solvents, insoluble in water. It is easily polymerized into a transparent solid by the action of heat, light or trace amounts of peroxide. Usually hydroquinone or diphenylamine is added as a stabilizer, and the storage time of pure products without stabilizers should not exceed 24h.iscible with ethanol, soluble in ether, acetone, chloroform, carbon tetrachloride and other organic solvents, insoluble in water. It is easily polymerized into a transparent solid by the action of heat, light or trace amounts of peroxide. 

Applications

Vinyl Acetate Monomer (VAM) is the main raw material for the manufacture of synthetic fiber vinylon. Vinyl Acetate Monomer (VAM) is polymerized by itself or copolymerized with fractionated monomers to obtain polyvinyl alcohol, vinyl acetate-ethylene copolymer (EVA), vinyl acetate-vinyl chloride copolymer (EVC), vinyl acetate-acrylonitrile fiber, vinyl acetate-acrylate copolymer. They all have important industrial uses, widely used as binders, architectural coatings, textile sizing and finishing agents, paper reinforcements, and for the manufacture of safety glass.

Vinyl acetate reacts with ethanol and bromine to prepare bromoacetaldehyde diethanol. This is an intermediate of the drug methiimidazole.

Packages

Package: In 190KG drum or 22MT ISO Tank.

Storage

Usually hydroquinone or diphenylamine is added as a stabilizer, and the storage time of pure products without stabilizers should not exceed 24h.

Technical Data of Vinyl Acetate Monomer

Product   Vinyl Acetate Monomer Specifications  
Item UNIT Specifications Test method
Premium Grades Qualified Grades
Appearance   clear&colorless clear&colorless SH/T1628.1-2014
Density 20℃)g/cm3 0.930-0.934 0.930-0.934 GB/T2013-2010
Water %m/m) 0.04Max 0.10Max GB/T6283-2008
Methyl acetate %m/m) 0.10Max 0.25Max SH/T1628.2-2014
Acetaldehyde %m/m) 0.02Max 0.03Max SH/T1628.5-2014
Acidity (CH3COOH) %m/m) 0.005Max 0.005Max SH/T1628.4-2014
Methanol,acetone %m/m) 0.02Max 0.02Max Meteorological
Butylene Aldehyde %m/m) 0.008Max 0.008Max chromatography analysis
benzene %m/m) 0.008Max - SH/T1628.2-2014
Residue after Evaporating % 0.005Max 0.050Max GB/T6324.2
Purity %m/m) 99.9Min 99.5Min SH/T1628.2-2014
Active Degree   680Max 700Max SH/T1628.3-2014
Hydroquinone (Inhibitor) g depend on the demand SH/T1628.6-2014

 

 

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