In the vast landscape of surfactants, Sorbitan Monolaurate (CAS 1338-39-2) and Polysorbates (like Polysorbate 20 or 80) are often discussed together. Both are derived from sorbitol and fatty acids, but they possess distinct properties that make them suitable for different applications, or for combined use to achieve specific formulation goals. Understanding these differences is crucial for formulators looking to buy the right surfactant for their needs.

Sorbitan Monolaurate is classified as a lipophilic surfactant, meaning it has a strong affinity for oil. It is typically used as a water-in-oil (W/O) emulsifier and possesses a lower Hydrophilic-Lipophilic Balance (HLB) value, commonly around 8.6. This makes it excellent for creating emulsions where the oil phase is continuous, common in many creams and cosmetic bases. Its non-ionic nature contributes to its stability across a range of pH conditions and compatibility with other ingredients.

Polysorbates, on the other hand, are derived from sorbitan esters (like Sorbitan Monolaurate) reacted with ethylene oxide. This process makes them significantly more hydrophilic (water-loving) and results in higher HLB values. For instance, Polysorbate 20 has an HLB of around 16.9, making it an excellent oil-in-water (O/W) emulsifier. Polysorbates are widely used in food, pharmaceutical, and cosmetic industries for their effectiveness in creating stable O/W emulsions, as solubilizers, and as dispersing agents.

The synergy between Sorbitan Monolaurate and Polysorbates is a key aspect of surfactant chemistry. By blending a lipophilic surfactant like Sorbitan Monolaurate with a hydrophilic one like Polysorbate, formulators can achieve precise HLB values required for specific emulsion types. This blending technique is common for optimizing performance in everything from food dressings to pharmaceutical creams.

When considering procurement, it is important to source both types of surfactants from reliable manufacturers. Companies looking to buy Sorbitan Monolaurate or Polysorbates often turn to Chinese manufacturers for their production capacity and competitive pricing. We are a leading supplier of both Sorbitan Monolaurate and various Polysorbates, committed to providing high-quality products that meet industry standards.

Whether your formulation requires a purely lipophilic base, a hydrophilic emulsifier, or a specific blend, understanding the roles of Sorbitan Monolaurate and Polysorbates is fundamental. We invite you to contact us for detailed product information, including technical data and pricing, to help you make the most informed purchasing decisions for your surfactant needs. Discover how our reliable supply can benefit your manufacturing processes.