Span S-85 (Sorbitan trioleate) is a highly lipophilic nonionic surfactant. Although it is not classified as a hazardous chemical under GHS, standard industrial chemical handling practices must still be followed during use. Under normal use conditions, this product does not cause significant acute health hazards, but prolonged or repeated skin contact may cause slight dryness, and it is mildly irritating to the eyes.
When using, it should be noted that Span S-85 is an amber to brownish-yellow viscous oily liquid with high viscosity, so attention should be paid to ease of handling during dispensing and weighing. Due to its strong lipophilic nature (very low HLB value), it is typically used as an emulsifier in water-in-oil (W/O) systems in formulation design, and it is recommended to be compounded with other emulsifiers for optimal emulsification results.
For storage, the product should be kept in a cool, dry, and well-ventilated warehouse, with containers tightly sealed, away from heat sources, sparks, and open flames, and avoid contact with strong oxidizers. The storage temperature is recommended to be controlled at room temperature, avoiding extreme high or low temperatures to prevent changes in product properties.
| Item | Specific Requirements |
|---|---|
| Personal Protection | Wear chemical protective gloves, safety goggles, and face protection equipment (P280) |
| Working Environment | Operate in a well-ventilated area; avoid prolonged or repeated skin contact |
| Post-Operation Handling | Thoroughly wash hands and exposed skin areas |
| Workplace | No eating, drinking, or smoking; do not store food |
| Storage Temperature | Room temperature range; avoid extreme high or low temperatures |
| Container Requirements | Keep tightly sealed; use original or compatible material containers with clear and complete labels |
| Keep Away From | Heat sources, sparks, open flames, strong oxidizers, food, beverages, and animal feed |
| Emergency Situation | Disposal Method |
|---|---|
| Skin Contact | Immediately remove contaminated clothing and rinse thoroughly with plenty of water and soap; seek medical attention if irritation or persistent discomfort occurs |
| Eye Contact | Immediately rinse with plenty of water for at least 15 minutes (hold eyelids open); if wearing contact lenses, remove before rinsing; seek medical attention if irritation persists |
| Inhalation | Move to fresh air and keep airways clear; if respiratory discomfort occurs, seek immediate medical attention |
| Ingestion | Rinse mouth with water immediately; do not induce vomiting; immediately contact a poison control center or seek medical attention |
| Spill Handling | Small spills: Absorb with inert absorbent material (sand, vermiculite) and collect in a sealed container; large spills: Construct a dike to collect and prevent entry into sewers or water sources; dispose of waste according to local regulations |
When using Span S-85 in formulations, it is recommended to dissolve it by heating in the oil phase for better dispersion. As a W/O emulsifier, its dosage is typically 1% to 5% of the total formulation, depending on the oil-water ratio of the system and the desired product texture. It can be used in combination with the Tween series (Tweens), adjusting the ratio to achieve different HLB values to meet diverse formulation needs.