Overview
Span 80, chemically known as Sorbitan Monooleate, is a widely used nonionic surfactant derived from sorbitol and oleic acid. It is valued for its emulsifying properties and is commonly employed in food, cosmetics, and pharmaceutical industries. As a versatile emulsifier, Span 80 helps stabilize mixtures of oil and water, making it indispensable in formulations requiring consistent texture and stability. Due to its low toxicity and biocompatibility, Span 80 is often preferred in applications where safety is paramount, such as in food additives and personal care products. Its ability to function effectively in both hydrophilic and lipophilic systems further enhances its utility across diverse industrial applications.
Physical and Chemical Properties
Span 80 is an amber-colored viscous liquid with a mild characteristic odor. It is soluble in most organic solvents and oils but exhibits limited solubility in water. The molecular structure of Span 80 includes a hydrophobic oleic acid chain and a hydrophilic sorbitan group, which contributes to its amphiphilic nature and emulsifying capabilities. The density of Span 80 is approximately 1.0 g/cm³, and its molecular weight is 428.6 g/mol. While it does not have a defined melting or boiling point, it remains stable under normal storage conditions. The surfactant's HLB (Hydrophilic-Lipophilic Balance) value of around 4.3 indicates its suitability for water-in-oil emulsions.
Main Applications
Span 80 is extensively used in the food industry as an emulsifier in products like ice cream, baked goods, and whipped toppings. It helps improve texture and shelf life by preventing ingredient separation. In cosmetics, it is a key component in creams, lotions, and makeup, where it ensures smooth application and stability. The pharmaceutical industry utilizes Span 80 in drug formulations, particularly in topical ointments and injectable emulsions. Its role in industrial applications includes serving as an emulsifier in lubricants, paints, and agricultural chemicals. The surfactant's versatility and safety profile make it a preferred choice across multiple sectors.
Safety and Storage
Span 80 is generally recognized as safe (GRAS) for use in food and cosmetic products. However, prolonged skin contact or eye exposure should be avoided, as it may cause mild irritation. Proper handling includes wearing gloves and protective eyewear when working with concentrated forms. Storage recommendations include keeping Span 80 in a cool, dry place away from direct sunlight and moisture. Containers should be tightly sealed to prevent contamination and degradation. The surfactant is stable under normal conditions but should not be exposed to extreme temperatures or incompatible chemicals.
B2B Procurement Guide
When procuring Span 80, B2B buyers should prioritize suppliers with verified certifications and a track record of quality. Key documents to request include the Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS) to ensure compliance with industry standards. Price considerations vary based on purity, packaging, and order volume, with bulk purchases typically offering cost advantages. Buyers should also assess logistical factors such as lead times and storage requirements to optimize procurement efficiency. Establishing long-term relationships with reputable suppliers can enhance reliability and consistency in supply.
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