Tween T-85 (Polyoxyethylene (20) sorbitan trioleate, CAS: 9005-70-3) is a nonionic surfactant, appearing as a light yellow to amber viscous liquid. Its molecular structure contains both hydrophilic and lipophilic groups, with a low HLB value (approximately 11), making it particularly suitable for preparing oil-in-water (O/W) emulsions. This product exhibits good tolerance to acids, alkalis, and hard water, and is compatible with various ionic and nonionic auxiliaries, thus being extremely widely used in multi-industry formulation systems.
As one of the core surfactant products of Guoli Chemical, Tween T-85 plays a key auxiliary role in many industrial fields due to its excellent emulsifying stability, solubilizing capacity, and wetting dispersibility, especially in processes requiring uniform dispersion of the oil phase in the water phase.
| Application Industry | Specific Process/Use | Functional Role |
|---|---|---|
| Pesticide Formulations | Processing of emulsifiable concentrates (EC), emulsions in water (EW), microemulsions (ME), etc. | Emulsifier, wetting agent - disperses oil-soluble pesticides uniformly in water, enhances spreading and penetration on plant surfaces, improving efficacy |
| Cosmetics and Personal Care | Formulations of creams, lotions, makeup removers, facial cleansers, etc. | Hydrophilic emulsifier - helps form stable O/W systems, providing a light, non-greasy feel on the skin |
| Food Processing | Baking fats, ice cream, salad dressings, non-dairy creamers, etc. | Emulsifier, solubilizer - improves texture and mouthfeel, maintains system uniformity, food additive code E436 |
| Textile Auxiliaries | Spinning oils, dyeing and finishing auxiliaries, softener formulations | Emulsifier, antistatic agent - imparts smoothness and antistatic properties to fibers, promotes dye dispersion, improves dyeing uniformity |
| Metalworking Fluids | Semi-synthetic cutting fluids, emulsified cutting fluids | Emulsifier - quickly emulsifies base oil in water to form a stable working fluid, providing lubrication and cooling performance |
| Coatings and Inks | Emulsion polymerization, preparation of water-based coatings | Emulsifier - promotes monomer dispersion and polymerization, enhances storage stability and film formation of coatings |
| Petroleum Extraction and Processing | Drilling fluids, enhanced oil recovery fluids, pre-treatment for crude oil demulsification | Emulsifier - helps stabilize mixing of oil-based or water-based systems, improves drilling fluid rheology and cuttings carrying capacity |
| Parameter | Specification/Description |
|---|---|
| Ionic Type | Nonionic surfactant |
| Appearance | Light yellow to amber viscous liquid |
| CAS No. | 9005-70-3 |
| Flash Point | >149°C (closed cup), non-flammable liquid |
| Food Additive Code | E436 |
| Emulsion Type | O/W type (oil-in-water) |