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Polyethylene glycol (PEG) is a polyether
compound that is used in a wide variety of applications, ranging from
industrial manufacturing to pharmaceuticals and cosmetics. It is a
water-soluble polymer composed of repeating ethylene glycol units.
Here are the details of Polyethylene glycol (PEG) along with its CAS number:
- Chemical formula: (C2H4O)nH2O
- CAS Number: 25322-68-3 (Polyethylene
glycol)
Polyethylene glycol is available in various molecular weights, which are indicated by a number following "PEG" (e.g., PEG-200, PEG-400, PEG-6000). The number represents the average molecular weight of the polymer.
Here are some common uses of Polyethylene glycol (PEG):
1. Industrial Applications: PEG is used as a lubricant, plasticizer, solvent, and dispersant in various industrial processes, including manufacturing, coatings, and textiles.
2. Pharmaceuticals: PEG is widely used in pharmaceutical formulations as a solubilizing agent, excipient, or vehicle for drug delivery systems. It is used in oral, topical, and parenteral formulations to improve drug solubility, stability, and bioavailability.
3. Cosmetics and Personal Care Products: PEG is used in cosmetics and personal care products such as creams, lotions, shampoos, and soaps as a moisturizer, emulsifier, and thickening agent.
4. Food and Beverages: PEG may be used as a food additive, emulsifier, or stabilizer in certain food and beverage products, although its use is regulated by food safety authorities.
5. Polymer Chemistry: PEG is used as a starting material or modifier in the synthesis of various polymers, hydrogels, and copolymers for research and industrial applications.
Polyethylene glycol is valued for its biocompatibility, low toxicity, and water solubility, making it suitable for a wide range of applications in diverse industries. However, it is important to note that some individuals may experience allergic reactions or sensitivities to PEG-containing products. As with any chemical substance, proper handling and safety precautions should be observed when using PEG.
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