Polyvinyl Alcohol PVA Pvoh Poval Polymer Hydroxyethene CAS 9002-89-5

• Customization: Available
• Application: Adhesives
• Certification: ISO, GMP
• Model NO.: 9002-89-5
• Shape: Powder
• Type: Polymer
• Custom Package: Available
• Shelf Time: 2 Years
• Transport Package: Polybag
• Specification: 99%
• Trademark: LONGKEY
• Origin: China
• HS Code: 390530
• Production Capacity: 20000mt/M

Product Description

• 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