Span S-80 (Sorbitan monooleate, CAS 1338-43-8) is a classic non-ionic surfactant with an HLB value of approximately 4.3, belonging to low hydrophilic-lipophilic balance emulsifiers. With its excellent oil phase affinity and chemical stability, it can achieve efficient water-in-oil (W/O) emulsification at low addition levels, maintaining stable performance under acid, alkali, and hard water conditions.
The product possesses multiple functions such as emulsifying, dispersing, wetting, and lubricating, with good compatibility with various oils, waxes, and organic solvents. It can be flexibly applied in multiple formulation systems, making it an indispensable functional additive in many industrial fields.
| Industry | Process/Application | Function/Role |
|---|---|---|
| Cosmetics & Personal Care | Skin creams, sunscreens, lotions, color cosmetics | Primary or secondary W/O emulsifier, providing spreadability and moisturizing feel |
| Food Industry | Baking fats, creamers, candies, chocolate | Emulsifier (E494), improving oil-water dispersion and texture stability |
| Pharmaceuticals | Ointment bases, suppositories, creams | Pharmaceutical excipient, promoting uniform drug distribution and transdermal absorption |
| Agrochemicals | Emulsifiable concentrates (EC), emulsifiable concentrates | Efficient emulsifying dispersant, spontaneously forming stable emulsion upon dilution |
| Industrial Lubricants | Rust preventive oils, cutting fluids, hydraulic fluids | Improving compatibility between additives and base oil, enhancing rust prevention and lubrication performance |
| Textile Industry | Fiber oils, spinning finishes | Smoothing agent and antistatic component, reducing fiber friction |
| Plastics & Polymers | Plastic processing, films, injection molded parts | Internal lubricant and antistatic agent, improving mold release and surface gloss |