Nonionic Sorbitan Stearate Emulsifier for Cosmetic Use CAS NO 9005-64-5 Sorbitan Stealate is a non-ionic surfactant produced by esterification of sorbitol and stearic acid. It exists in the form of solid particles ranging from white to light yellow, with a faint odor. As a lipophilic emulsifier, it has a low HLB value and belongs to the category of auxiliary emulsifiers in oil in water (O/W) systems. Good chemical stability, acid value ≤ 10, hydroxyl value between 235-260, saponification value between 147-157. Because it is insoluble in water, but well matched with non-ionic and lipophilic ingredients, it is a "natural choice" in lotion formulations that need to maintain structural and texture integrity.
Usage suggestions
In cosmetic formulas, the recommended dosage is 1% -5%. It is usually added during the oil phase and heated to 70-75 ℃ to ensure sufficient dispersion. Due to its poor solubility in water, an effective water in oil system requires emulsification with suitable hydrophilic surfactants. If the formula requires a heating process, it can maintain its own structure and stability even in high temperature environments. However, it should be noted that it should not be directly mixed with strong oxidants or highly acidic components, otherwise it will affect performance.
Application scope
This emulsifier is widely used in face cream, cream, sunscreen products, and makeup formulas. It is also found in body cream, ointment and other products that require high quality, structure and long-term stability of lotion. In addition to cosmetics, in food and pharmaceutical applications, as long as it is used in compliance, it is also a recognized safe emulsifier, which can play a role in stabilizing lotion in these industries.