POLYOX™ WSR 205 NF is a low molecular weight, water soluble, pharmaceutical grade poly(ethylene oxide) polymer. It is often used as a binder and thickener.
POLYOX™ WSR 205 NF is a national formulary grade of polyethylene oxide. It is water soluble and provides precise control of rheology in water-based formulations. POLYOX™ WSR 205 NF can also be used in tablet formulations and ceramic applications as a binder to improve green strength. This grade is very high purity and is approved for use in regulated applications.
Viscosity, 5% Aqueous Solution: 4500-8800 cP
pH @ 25°C, 5% Aqueous Solution: 8.0-10.0
Particle Size, Thru 10 Mesh: 100%
Particle Size, Thru 20 Mesh: 96-100%
Particle Size, Thru 100 Mesh: 35-75%
Particle Size, Thru 200 Mesh: 0-40%
Loss on Drying: 0.0-1.0 Wt%
Alk. Earth Metals: 0.0-1.0 Wt%
Silicon Dioxide: 0.8-3.0 Wt%
Residue on Ignition: 0.0-2.0 Wt%
Free Ethylene Oxide: 0-10 ppm
BHT: 100-1000 ppm
NF Ident. Tests A&B: Pass current USP/EP/JP
Primary Chemistry: Poly(ethylene oxide)
Low Molecular Weight
High Purity
Water Soluble
National Formulary Grade
Poor green strength that leads to manufacturing defects.
Ceramics; Water Based Coatings; Tablets; Water Based Inks; Water Based Adhesives & Sealants
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