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Other Names: PEG, polyoxyethylene, polyglycol or polyether glycol. Polyethylene glycol is the name for polymers of ethylene glycol having a wide range of molecular weights. Properties vary with molecular weight.
Viscosity: varies widely, depending on the particular glycol. Generally in the range of 22 to 220 cPs., with variations beyond this possible.
Remarks: Clear, colorless, odorless, viscous liquids or waxy solids. Soluble or miscible with water and organic solvents. Used in making plasticizers, softeners, lubricants, as a base for cosmetics and pharmaceuticals. Polyethylene glycol is often identified by a number such as 400 following the name. The number following the name indicates average molecular weight. The numbers 400 and less indicate a liquid; those with higher numbers generally indicate a solid at room temperature.
Pump Notes: Cast iron construction is satisfactory. Buna n elastomers are recommended as is a mechanical shaft seal.