Addition polymer of polyethylene oxide and water. Those with a molecular weight below 700 are colorless, odorless, non-volatile viscous liquids at 20°C, slightly hygroscopic. Those with a molecular weight between 700 and 900 are semi-solid. Those with a molecular weight of 1000 and above are pale white waxy solids or flakes of paraffin or fluid powder. Miscible in water, soluble in many organic solvents, such as alcohols, ketones, , glycerides and aromatic hydrocarbons; insoluble in most aliphatic hydrocarbons and ether. As the molecular weight increases, its water solubility, vapor pressure, water absorption, and solubility in organic solvents decrease accordingly, while its freezing point, relative density, flash point, and viscosity increase accordingly. Stable to heat, does not work with many chemicals, does not hydrolyze.
Complaint
