Vinyl Acetate Monomer, identifiable by CAS 108-05-4, functions as a reactive unsaturated ester used primarily as the essential building block for polyvinyl acetate (PVAc) and polyvinyl alcohol (PVA) production. Chemically defined as the vinyl ester of acetic acid, this colorless, volatile liquid serves as a key monomer in emulsion polymerization for adhesives, paints, and textile coatings. The substance, often referred to as VAM or Ethenyl Acetate in petrochemical trading, acts as a comonomer in ethylene-vinyl acetate (EVA) resins and a precursor for polyvinyl butyral (PVB) safety glass interlayers. We facilitate bulk supply of this organic intermediate with competitive factory pricing, capable of meeting customized specifications for inhibitor content and purity, backed by comprehensive MSDS, TDS, COA documentation.
Vinyl Acetate Monomer Manufacturer CAS 108-05-4
- CAS: 108-05-4
- Synonyms: Vinyl acetate, Ethenyl acetate, Acetic acid ethenyl ester, VAM
- Einecs: 203-545-4
- Molecular Formula: C4H6O2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Physicochemical Properties
| Parameter | Specification |
|---|---|
| Appearance | Clear, colorless liquid |
| Purity (GC) | ≥ 99.9% |
| Acid (as Acetic Acid) | ≤ 0.02% |
| Water Content | ≤ 0.04% |
| Color (Pt-Co) | ≤ 10 |
| Density (20°C) | 0.930 – 0.934 g/cm³ |
| Aldehydes (as Acetaldehyde) | ≤ 0.03% |
| Inhibitor (Hydroquinone) | 3 – 5 ppm (Adjustable) |
| Non-volatile Matter | ≤ 0.005% |
Applications
Adhesives & Sealants
- Polyvinyl Acetate (PVAc): Polymerized to produce “white glue” or wood glue, widely used in woodworking, packaging, and bookbinding.
- VAE Emulsions: Copolymerized with ethylene to create high-performance adhesives for flexible packaging and construction.
Paints & Coatings
- Latex Paints: Serves as the primary binder in interior and exterior water-based architectural paints, providing durability and adhesion.
Textiles & Nonwovens
- Binders: Used in fiber bonding for nonwovens (wipes, hygiene products) and as a sizing agent to protect yarns during weaving.
High-Performance Polymers
- Ethylene Vinyl Acetate (EVA): Used in solar panel encapsulation films, footwear foam (shoe soles), and hot melt adhesives.
- Ethylene Vinyl Alcohol (EVOH): A barrier resin used in food packaging to prevent oxygen transmission.
Quality Assurance (QA/QC)
Our VAM is produced in world-class petrochemical facilities certified to ISO 9001:2015.
- Purity Control: We guarantee a minimum purity of 99.9%, ensuring high conversion rates in polymerization reactors.
- Inhibitor Management: Standard shipments contain 3-5 ppm Hydroquinone (HQ) to ensure stability during transit. We can adjust HQ levels (e.g., 12-15 ppm) based on your storage duration requirements.
- Trace Impurities: Strict control of acetaldehyde and acidity to prevent yellowing or defects in the final polymer.
Storage & Safety
Storage Guidelines
- Flammability: Highly flammable liquid and vapor. Store in a dedicated flammable liquids warehouse away from sparks and open flames.
- Temperature: Store below 30°C. High temperatures can deplete the inhibitor and trigger hazardous polymerization.
- Shelf Life: 3-6 months depending on inhibitor level and storage temperature. Regular testing of inhibitor content is recommended.
Safety & PPE Recommendations
- Hazard Class: Flammable Liquid (Class 3).
- Health Hazard: Suspected of causing cancer (Category 2). Harmful if inhaled.
- PPE: Wear anti-static protective clothing, chemical-resistant gloves, and organic vapor respirators.
- Handling: Use non-sparking tools. Ground and bond containers when transferring to prevent static discharge.
FAQ - Technical & Supply Chain
-
Q:
Do vinyl acetate and vinyl acetate monomer refer to the same substance?
A: Yes. Vinyl acetate and vinyl acetate monomer refer to the same chemical substance used in industrial polymerization and correspond to the single CAS number 108-05-4. -
Q:
What is the common functional role of VAM in polymer systems?
A: It is commonly used as a reactive monomer that undergoes polymerization to form vinyl-based polymers or copolymers, serving as a structural building unit rather than a finished material. -
Q:
Is Vinyl Acetate Monomer chemically distinct from Polyvinyl Acetate?
A: Yes, Vinyl Acetate Monomer (CAS 108-05-4) is the reactive precursor liquid, whereas Polyvinyl Acetate is the solid polymer formed through the polymerization of this monomer.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
