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Polyethylene glycol (PEG) is a versatile polyether compound made from the polymerization of ethylene oxide. It is available in various molecular weights, typically ranging from 200 to 6000, which influences its physical properties and applications. PEG is a colorless, odorless, and hygroscopic substance that is soluble in water and many organic solvents.
| Molecular weight range | 200 to 6000 g/mol |
| Appearance | Colorless, viscous liquid or solid |
| Solubility | Soluble in water and organic solvents |
| Viscosity | Varies with molecular weight |
| Boiling point | Varies with molecular weight, typically 100-300°C |
When choosing polyethylene glycol, consider the specific molecular weight required for your application, as this affects viscosity, solubility, and functionality. Additionally, inquire about the grade of PEG, as pharmaceutical and food-grade materials may have different purity and safety standards. Specify the quantity needed, as bulk orders may influence pricing and availability.
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PEG is used in pharmaceuticals, cosmetics, food processing, and industrial applications.
Higher molecular weights generally result in increased viscosity and different solubility characteristics.
Yes, food-grade PEG is considered safe for consumption when used appropriately.
Yes, PEG is commonly used as a solvent, plasticizer, and excipient in drug formulations.
PEG is generally considered biodegradable, but its environmental effects can vary based on concentration and usage.
Yes, PEG is available in industrial, pharmaceutical, and food grades, each with specific purity requirements.