POLYOX WSR 205 Polyethylene Oxide (Polyoxyethylene)

Introduction:

Dow Chemical's POLYOX WSR 205 polyethylene oxide (PEO) is a white to gray-white, flowable, non-ionic polymer in fine powder form, known for its stability, resistance to decomposition, and ease of complete dissolution with a faint odor. POLYOX WSR 205 PEO features lubricity, water retention, adhesion, film-forming properties, and thickening capabilities.

Detailed specifications:

1. Common Name: Polyethylene Oxide, Polyoxyethylene Ether, Polyethylene Glycol 14-M

2. English Name: Polyethylene Oxide, Abbreviated as PEO

3. Chemical Structure: - (CH2-CH-O- n-CH2-CH-O-)

4. Appearance: White or gray to pale yellow powder

5. Purity: >96%

6. Molecular Weight: 600,000

7. Particle Size: Over 10 mesh, over 20 mesh > 96%

8. Viscosity: 4,500-8,800 centipoise (5% water solution; testing instrument: RVF viscometer, 25°C, rotor speed 2 rpm)

9. Alkaline earth metals: <0.3% (Testing Method: Combustion Loss Method; 550°C, 30 minutes, combined with silicon dioxide testing)

Silicon Dioxide: <1.5% (Testing Method: Loss on Ignition; 550°C, 30 minutes, combined with alkaline earth metals)