Tween 85
It is amber colored oily viscous liquid, relative density 1.00~1.05, viscosity 0.20~0.40Pa-s (25℃ ), fl ash point 321℃ , HLB value 11.0. soluble in rapeseed oil, lysine, methanol, ethanol and other low carbon alcohols, aromatic solvents, ethyl acetate, most mineral oils, petroleum ether, acetone, dioxane, carbon tetrachloride, ethylene glycol, propylene glycol, etc., in water Dispersion.
Used as emulsifier, stabilizer, wetting agent, dispersant, penetrant, etc
Introduction
Tween 85, a nonionic surfactant derived from sorbitan trioleate, is commonly used in emulsification, dispersion, and solubilization applications. Its hydrophilic-lipophilic balance (HLB) value makes it suitable for stabilizing oil-in-water emulsions in various industries.
Chemical Characteristics
| Melting point | -20 °C |
| Boiling point | 100 °C |
| density | 1.028 g/mL at 20 °C |
| vapor pressure | <1 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | >230 °F |
| storage temp. | Store below +30°C. |
| solubility | Dispersible in water, in anhydrous ethanol, in ethyl acetate and in methanol, practically insoluble in fatty oils and in liquid paraffin. |
| form | viscous liquid |
| Specific Gravity | 1.030 (20/4℃) |
| color | Light yellow to Brown |
| Hydrophilic-Lipophilic Balance (HLB) | 11 |
| InChI | InChI=1S/CH4/h1H4 |
| InChIKey | VNWKTOKETHGBQD-UHFFFAOYSA-N |
| SMILES | C |
| EPA Substance Registry System | Polysorbate 85 (9005-70-3) |
Applications
Pharmaceutical Industry
Used as an emulsifying agent in topical and oral formulations.
Stabilizes drug suspensions and solutions.
Food Industry
Functions as an emulsifier in processed foods, particularly in dressings and desserts.
Enhances texture and consistency.
Cosmetics
Incorporated into lotions, creams, and makeup for its emulsifying properties.
Helps disperse active ingredients uniformly.
Industrial Applications
Serves as a dispersant in agrochemical formulations.
Improves oil-water compatibility in lubricants and coatings.
Handling and Storage
Storage Conditions: Store in a cool, dry place away from direct sunlight.
Shelf Life: Typically 24 months when stored under optimal conditions.
Precautions: Avoid prolonged exposure to heat and open flames.
FAQs
1. Is Tween 85 safe for food applications?
Yes, it is approved for use in food products as an emulsifier under specific regulatory guidelines.
2. Can Tween 85 be used in combination with other surfactants?
Yes, it is often combined with other surfactants to optimize emulsification and stability.
3. What is the recommended dosage for emulsification?
The dosage depends on the specific application but generally ranges from 0.1% to 2% by weight.
4. How does Tween 85 differ from other Tween surfactants?
Tween 85 has a lower HLB value compared to Tween 80, making it more suitable for stabilizing emulsions with higher oil content.
For more detailed information or technical data, please consult the product's material safety data sheet (MSDS).
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