پلی اتیلن گلیکول 300
| Formula | HO(C2H4O) n H |
| Chemical formula | HO(C2H4O) n H |
| Density | 1.13 g/cm3 (20°C) |
| Molar mass | 600 g/mol |
| CAS number | 25322 -68-3 |
| HS Code | 39072011 |
| Storage | Without limitation |
| SDS | available |
| Odour | almost oduorless |
| Form | liquid to viscose |
| Color | colourless |
| Ignition tempratue | 380 °C |
| p H value | 5 – 7 (100 g/l 20 °C) |
| Solubility in water | soluble 20 °C ) |
| Flash point | 270 °C (0 °C) |
| Boiling point | ~ 270 °C |
| Melting point | 17 – 22 °C |
| Vapour pressure | ~ 0.1hpa (20 °C ) |
| Thermal decomposition | ~ 250 °C |
Polyethylene Glycol 300 (PEG 300) is a low-molecular-weight grade of polyethylene glycol, a polyether compound derived from ethylene oxide. It is a clear, colorless, viscous liquid that is odorless and tasteless. PEG 300 is widely used in pharmaceuticals, cosmetics, and various industrial applications.
🏭⚗️ Production
PEG 300 is produced by the polymerization of ethylene oxide in the presence of a catalyst. The process is controlled to achieve a target average molecular weight of approximately 300 g/mol, resulting in a liquid form.
🔬 Properties
PEG 300 is hygroscopic, water-soluble, and miscible with many organic solvents. It is non-toxic, chemically stable, and shows low volatility. Its viscosity and solvent capabilities make it ideal for use in formulations requiring moisture retention or solubilization of active ingredients.
🧪 Applications
• Pharmaceuticals: Used as a solvent, plasticizer, and base in oral, topical, and parenteral drug formulations.
• Cosmetics and personal care: Functions as a humectant, solubilizer, and carrier in skin creams, lotions, and hair care products.
• Food industry: Occasionally used as a food additive and carrier solvent (though higher-molecular-weight PEGs are more common).
• Industrial uses: Used as a lubricant, softener, and anti-static agent in textiles and other manufacturing processes.
