Overview
Polysorbate 80 aqueous solution emulsifier, commonly known as Tween 80, is a non-ionic surfactant derived from sorbitol and oleic acid. It is widely used in industries requiring emulsification, dispersion, and solubilization. Its hydrophilic-lipophilic balance (HLB) of approximately 15 makes it ideal for stabilizing oil-in-water emulsions. The emulsifier is favored for its low toxicity and compatibility with a wide range of ingredients, making it a staple in pharmaceuticals, cosmetics, and food products. Its versatility and effectiveness have established it as a critical component in formulations where stability and texture are paramount.
Physical and Chemical Properties
Polysorbate 80 is a viscous, clear to slightly yellow liquid with a mild odor. It is highly soluble in water, ethanol, and most organic solvents, which enhances its utility in diverse formulations. The emulsifier's density ranges between 1.06-1.09 g/cm³, and it exhibits excellent stability under normal storage conditions. Its non-ionic nature ensures compatibility with other surfactants and ingredients, reducing the risk of precipitation or phase separation. The molecular structure, featuring polyoxyethylene chains, contributes to its emulsifying and solubilizing capabilities, making it effective even at low concentrations.
Main Applications
In the pharmaceutical industry, Polysorbate 80 is used as an excipient in vaccines, oral suspensions, and topical creams to enhance solubility and stability. Its emulsifying properties are crucial for ensuring uniform drug delivery and improving bioavailability. The cosmetics industry relies on Tween 80 for lotions, creams, and shampoos, where it acts as a stabilizer and texture enhancer. In food production, it serves as an emulsifier in ice creams, baked goods, and dressings, ensuring smooth consistency and extended shelf life. Industrial applications include its use in lubricants and cleaning agents.
Safety and Storage
Polysorbate 80 is generally recognized as safe (GRAS) by regulatory bodies, but precautions should be taken to avoid prolonged skin contact or eye exposure, which may cause mild irritation. Proper storage in a cool, dry place away from direct sunlight ensures long-term stability. Bulk storage should use corrosion-resistant containers to prevent contamination. While the emulsifier is stable under normal conditions, excessive heat or prolonged exposure to air may degrade its performance. Always refer to the material safety data sheet (MSDS) for specific handling guidelines.
B2B Procurement Guide
When procuring Polysorbate 80, prioritize suppliers with certifications such as ISO, GMP, or USP to ensure quality and compliance. Verify the product's purity, typically 98-99%, and request batch-specific test reports for traceability. Consider packaging options (drums, totes, or bulk) based on volume needs. Pricing varies with purity and supplier reliability, so negotiate contracts for long-term supply. For niche applications, inquire about custom formulations or blends to meet specific requirements. Always audit supplier facilities to confirm adherence to safety and quality standards.
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