Polysorbate 40
Polysorbate 40, identified by CAS number 9005-66-7, is a non-ionic surfactant and emulsifier derived from ethoxylated sorbitan esterified with palmitic acid. Chemically known as polyoxyethylene (20) sorbitan monopalmitate, it typically presents as a viscous, amber-colored liquid at room temperature. This material is characterized by its high hydrophilic-lipophilic balance (HLB) value, making it particularly effective at stabilizing oil-in-water (O/W) emulsions. As a versatile chemical raw material, Polysorbate 40 exhibits excellent solubility in water and organic solvents like ethanol, while remaining stable across a broad range of pH levels and electrolyte concentrations. In industrial and research contexts, it is valued for its ability to reduce interfacial tension, enhance the solubility of hydrophobic substances, and prevent the coalescence of dispersed droplets. Proper handling involves storage in tightly sealed containers away from direct light and moisture to maintain its chemical integrity and functional performance in complex formulations.
• Emulsification and Stabilization: Polysorbate 40 is primarily utilized as a high-HLB emulsifier to create and stabilize oil-in-water emulsions. It works by forming a protective layer around oil droplets, preventing phase separation in diverse formulations such as lotions, creams, and industrial coatings. Its non-ionic nature ensures compatibility with a wide variety of other surfactants and active ingredients.
• Solubilization of Hydrophobic Components: In the development of aqueous solutions, this material serves as an effective solubilizing agent for essential oils, fragrances, and fat-soluble vitamins. By incorporating these hydrophobic substances into micellar structures, Polysorbate 40 ensures clear, homogeneous mixtures and improves the delivery efficiency of the encapsulated components in research and industrial applications.
• Wetting and Dispersing Agent: The compound is frequently employed as a wetting agent to improve the spreadability of liquids on solid surfaces. In pigment dispersions and agrochemical formulations, it aids in the uniform distribution of solid particles within a liquid medium, preventing sedimentation and ensuring consistent performance during application.
• Textural and Consistency Modification: Beyond its primary surfactant roles, Polysorbate 40 is used to modify the rheological properties of fluid systems. It contributes to the desired viscosity and sensory profile of personal care products and industrial lubricants, ensuring smooth application and stable shelf life.
Product Name: Polysorbate 40
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