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Polyethylene Glycol (PEG) is a polyether compound composed of repeating units of ethylene oxide. It is a water-soluble, non-toxic, and biodegradable polymer available in liquid, paste, or solid (powder/granule) form, depending on its molecular weight. PEG is widely used as a solvent, dispersant, humectant, lubricant, and carrier in multiple industrial and pharmaceutical applications. Its chemical formula is generally written as H–(O–CH₂–CH₂)ₙ–OH, where n indicates the number of repeating ethylene oxide units.
| Parameter | Details |
|---|---|
| Chemical Type | Polyethylene Glycol |
| Abbreviation | PEG |
| Chemical Formula | H–(O–CH₂–CH₂)ₙ–OH |
| Physical Appearance | Liquid, paste, or white solid (depends on molecular weight) |
| Solubility | Soluble in water, alcohols, and some organic solvents |
| Molecular Weight | 200 – 20,000 g/mol (varies by grade) |
| Main Function | Solvent, dispersant, humectant, lubricant, carrier |