Vinyl Acetate
Overview
Vinyl acetate, also known as vinyl acetic ester, is an organic compound with the
chemical formula C4H6O2. It is a colorless liquid with a sweet, fruity smell.
This compound is widely used as a monomer in the production of polyvinyl acetate
and other polymers, which are essential in adhesives, paints, coatings, and
textile finishes. Vinyl acetate is also used as an intermediate in the
production of various chemicals and materials, contributing to industries like
construction, packaging, and consumer goods.
INQUIRE NOW
Chemical Identity
Chemical Formula: C4H6O2
IUPAC Name: Ethenyl ethanoate
CAS Number: 108-05-4
Molecular Structure: CH3COOCH=CH2
Physical and Chemical Properties
Appearance: Colorless liquid
Odor: Sweet, fruity odor
Density: 0.93 g/cm³ at 20°C
Boiling Point: 72-73°C
Flash Point: -8°C (closed cup)
Solubility: Slightly soluble in water; highly miscible with organic solvents like
ethanol, acetone, and benzene.
Technical Specifications
|
Items
|
Technical requirement
|
|
Best quality
|
First quality
|
Qualifier
|
|
Appearance
|
Colorless and transparent
|
|
Density(20),g/cm3
|
0.930~0.934
|
0.930~0.934
|
0.929~0.935
|
|
Free acid (as acetic acid),%
|
0.005
|
0.010
|
0.020
|
|
Aldehyde(as acetaldehyde),%
|
0.02
|
0.04
|
0.05
|
|
Dry residue,%
|
0.005
|
0.05
|
0.10
|
|
Water content,%
|
0.04
|
0.10
|
0.20
|
|
Activity (second) (frothing time), second
|
660
|
690
|
720
|
|
Color(platinum-cobalt scale)
|
5
|
10
|
15
|
|
Purity,% =
|
99.80
|
99.70
|
–
|
|
Boiling range (101.3kpa),C
|
71.0~73.5
|
71.0~73.5
|
71.0~73.5
|
Packing & Storage
| Storage |
Close, protect from light, ventilated and dry, cool, do not mix storage.
|
| Shipping |
Equipped with appropriate varieties and quantities of fire-fighting
equipment. |
Production Methods
Vinyl acetate is primarily produced through the reaction of ethylene, acetic acid, and
oxygen in the presence of a palladium-based catalyst. This process is known as oxidative
acetoxylation:
C2H4 + CH3COOH + 12O2 → CH3COOCH
= CH2 + H2O
C2H4 + CH3COOH + 21O2 → CH3COOCH
= CH2 + H2O
Applications
Polyvinyl Acetate (PVA):
Used in adhesives (e.g., wood glues), paints, coatings, and textile finishes.
PVA is a precursor for polyvinyl alcohol (PVOH), which finds use in paper coatings and
films.
Ethylene Vinyl Acetate (EVA):
A copolymer of ethylene and vinyl acetate, widely applied in footwear, flexible films,
foam sheets, and solar encapsulants.
The vinyl acetate content in EVA enhances elasticity, transparency, and impact
resistance.
Polyvinyl Alcohol (PVOH):
Derived from polyvinyl acetate through hydrolysis.
Widely used in biodegradable films, water-soluble packaging, and adhesives.
Intermediate in Chemical Synthesis:
Vinyl acetate acts as a monomer in the synthesis of various resins, coatings, and
polymers.
Other Uses:
Paper coatings for glossy finishes
Laminates in furniture and packaging
Water-based paints and emulsions
Industrial Importance:
Vinyl acetate is a vital monomer in the global polymer industry due to its versatility,
cost-effectiveness, and ability to enhance material performance. It is heavily used in
adhesives, construction materials, and consumer goods.
Safety and Handling
Hazards:
Flammable liquid and vapor (Category 2).
Exposure can cause irritation to eyes, skin, and respiratory tract.
Long-term exposure may have health effects; proper precautions are required.
Storage:
Store in cool, dry, and well-ventilated areas away from heat sources.
Use explosion-proof equipment for handling.
Environmental Impact:
Vinyl acetate is classified as a volatile organic compound (VOC) and can contribute to
air pollution. However, when used and disposed of correctly, its environmental risks can
be minimized. Industries are increasingly adopting sustainable methods to produce and
utilize vinyl acetate.
