overview
Common Name: Span 60
CAS Number: 1338-41-6
EINECS Number: 215-665-4
Molecular Formula: C24H46O6
Molecular Weight: 430.61 g/mol
Sorbitan Monostearate, also known as Span 60, is a nonionic surfactant formed by the esterification of sorbitol with stearic acid.
It is widely used as a water-in-oil (W/O) emulsifier in food, cosmetic, pharmaceutical, and industrial formulations.
Span 60 provides excellent emulsifying and stabilizing capabilities and is valued for its mildness and compatibility with a wide range of ingredients. It helps create smooth, uniform emulsions and enhances the texture and consistency of final products.
Molecular structure description
Hydrophilic part: Sorbitan (dehydrated sorbitol) head group
HLB value: ~4.7 (strongly lipophilic, ideal for water-in-oil emulsions)
Specifications
Thanks to its unique chemical structure and low HLB value, Span 60 is especially effective in stabilizing water-in-oil emulsions. It also functions as a dispersing agent, thickener, and antistatic agent in various systems. Its physical stability and skin-friendly profile make it a popular choice in creams, lotions, ointments, and food-grade emulsions.
| Test Item | Unit | Minimum Value | Maximum Value |
|---|---|---|---|
| Saponification Value | mgKOH/g | 147 | 157 |
| Iodine Value | mgKOH/g | 235 | 260 |
| Acid Value | mgKOH/g | — | 10 |
| Moisture | % | — | 1.5 |
| Saturated Fatty Acid | % | 71 | — |
| Polyunsaturated Fatty Acid | % | 29.5 | 33.5 |
| Phosphorus | mg/kg | — | 3 |
| Lead | mg/kg | — | 2 |
Applications
It works well in water-in-oil emulsions and provides excellent compatibility with other nonionic surfactants.
Its mild nature and versatility make it a preferred ingredient in formulations requiring stability and safety.
Emulsification Efficiency – Stable W/O Emulsions
Sorbitan esters are highly effective in forming stable water-in-oil emulsions. Ideal for margarine, creams, and ointments, they help maintain consistency and prevent separation over time.
Mild & Skin-Friendly – Ideal for Cosmetics
Widely used in lotions, creams, and makeup products, sorbitan esters are non-irritating and suitable for sensitive skin. They provide smooth textures and enhance product stability.
Food Grade & Safe – Emulsifiers for Processing
Approved for food use, they act as emulsifiers in sauces, dairy products, and spreads. Improve mouthfeel, extend shelf life, and maintain homogeneity of processed foods.
Pharmaceutical Use – Enhances Drug Stability
Used in medicinal creams, gels, and suspensions, sorbitan esters help deliver oil-soluble actives effectively. They improve bioavailability and ensure long-term formulation stability.
storage & package
Storage:
Store in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat.
Avoid contact with harmful or incompatible substances. Handle with care during transportation to prevent leakage or contamination.
Transportation:
Transport as a general chemical product, following standard safety and handling procedures.
Package:
Sorbitan monostearate is packed in high-quality PE drums with double-seal lids.
Standard packaging sizes include 25kg/drum, 200kg/drum, and 1000kg IBC tote to meet different usage needs.
25 Kg /drum
200kg/drum
