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VWR Polyvinyl alcohol, M.W. 22,000 ≥98%, hydrolysed
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Specifications:
| Application | pharmaceutical, controlled release, liquid formulation, ophthalmics, semi-solid formulation, solid formulation | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Scales |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | [-CH₂CH(OH)-]n |
VWR Polyvinyl Alcohol (PVA), with an average molecular weight of approximately 22,000 and a hydrolysis degree of ≥98%, is a high-purity polymer suitable for use in adhesives, emulsifiers, coatings, hydrogels, and various laboratory and industrial applications. Supplied as a white powder, it offers excellent solubility in water and film-forming capabilities, making it highly versatile in research and manufacturing processes.
Key Features and Benefits
- High degree of hydrolysis (≥98%) for increased water solubility and film strength
- Defined molecular weight (approx. 22,000) for consistent viscosity and performance
- Suitable for use as a stabilizer, binder, thickener, or film former
- Low ignition residue and moisture content for reliable analytical and process results
- Supplied in a convenient 500 g plastic bottle for laboratory handling
Applications
- Film-forming agent in coatings and adhesives
- Binder in ceramics, pigments, and pharmaceuticals
- Stabilizer in emulsions and suspensions
- Matrix material for hydrogels and biomedical applications
- Viscosity control agent in chemical formulations
Technical Specifications
| Property | Specification |
|---|---|
| Molecular Weight | ~22,000 |
| Degree of Hydrolysis | ≥ 98% |
| Viscosity (20 °C, 4% in water) | 5.5 – 6.6 mPa·s |
| Ignition Residue (as SO₄) | ≤ 1% |
| Loss on Drying (105 °C) | ≤ 5% |
| CAS Number | 9002-89-5 / 25213-24-5 |
| MDL Number | MFCD00081922 |
| Molecular Formula | [–CH₂CH(OH)–]ₙ |
| Storage Temperature | Ambient |
| Packaging Type | Plastic bottle |
| Pack Size | 500 g |
| Sequence Number | 3645 |
VWR Polyvinyl Alcohol, M.W. 22,000, hydrolysed to ≥98%, is a dependable polymeric reagent suited for a wide range of scientific, industrial, and formulation-based applications. Its high purity and defined physical properties make it ideal for users seeking consistency and quality in their polymer workflows.