Audited Supplier
- Formula (C2H4O)n
- Molecular weight 26,000 - 200,000 g/mol (varies by grade)
- CAS 9002-89-5
- Synonym name
Polyvinyl Alcohol
PVOH
PVA
POVAL
Ethenol homopolymer
Hydroxyethene - EINECS number 209-183-3
- H.S. Code 390530
Application
Adhesives: Binder in paper, textiles, and wood adhesives.Textile Sizing: Temporary protective coating for yarns.
Paper Coatings: Surface sizing agent for improved printability.
Emulsion Polymerization: Dispersant/stabilizer for PVC and VAM latex.
Pharmaceuticals: Tablet coating and ophthalmic formulations.
Packaging Films: Water-soluble films for detergents and agrochemicals
Properties
Appearance: White to creamy granular powder or pellets.
Soluble in water (hot or cold, depending on hydrolysis degree).
Insoluble in most organic solvents (e.g., acetone, ethanol).
Hydrolysis Degree: Partially hydrolyzed (87-89 mol%) / Fully hydrolyzed (98-99 mol%)
Viscosity (4% sol., 20°C): 4-100 mPa·s (dependent on polymerization degree)
Bulk Density: 1.19-1.31 g/cm³
pH (4% solution): 5.0-7.0
Melting Point: 200-240°C (decomposes)
Glass Transition Temp.: ~85°C (fully hydrolyzed) / ~58°C (partially hydrolyzed)
Flash Point: Non-flammable (>300°C)
Moisture Conten: ≤5% (typical)
GHS Hazard Statements: not classified.
Package
Package: 25kg/polybag
Container load: 16MT/20ft. 26MT/40ft, on pallet.
Storage: keep in dry and cool conditions, avoid moisture, rain and sunlight.
Shelf time: 24 months
Blocking Prevention: Use moisture-proof
