overview
Common Name: Span 80
CAS Number: 1338-43-8
EINECS Number: 215-665-4
Molecular Formula: C24H44O6
Molecular Weight: 428.6 g/mol
Sorbitan Monooleate, also known as Span 80, is a nonionic surfactant obtained by the esterification of sorbitol with oleic acid.
It is widely used as a water-in-oil (W/O) emulsifier in various industries such as food, cosmetics, pharmaceuticals, agrochemicals, and industrial lubricants.
Span 80 exhibits excellent emulsifying, dispersing, and wetting properties, and is especially suitable for formulations requiring stability in oily or hydrophobic systems.
Molecular structure description
Hydrophilic part: Sorbitan (dehydrated sorbitol) head group
HLB value: ~4.3 (lipophilic, ideal for water-in-oil emulsions)
Specifications
Due to its low HLB value (approximately 4.3), Span 80 is particularly effective for stabilizing W/O emulsions and is often combined with high-HLB emulsifiers (such as polysorbates) to create more complex systems. In food processing, it can be used in margarine and shortening. In personal care, it contributes to the consistency of creams and lotions. It is also used as a dispersant for pigments, an antifoaming agent, and a stabilizer in agricultural and industrial formulations.
| Test Item | Unit | Minimum Value | Maximum Value |
|---|---|---|---|
| Saponification Value | mgKOH/g | 145 | 160 |
| Iodine Value | mgKOH/g | 193 | 210 |
| Acid Value | mgKOH/g | — | 8 |
| Moisture | % | — | 2 |
| Fatty Acids | w% | 73 | 77 |
| Polyol | w% | 28 | 32 |
| Phosphorus | mg/kg | 28 | 32 |
| Lead | mg/kg | — | 2 |
Applications
It performs well in water-in-oil emulsions and offers outstanding compatibility with other nonionic surfactants.
Its mild nature and versatility make it a preferred ingredient in formulations that require long-term 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 Monooleate 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
