Description

Polysorb CAS NO 12770-88-6 is a versatile class of nonionic surfactants derived from the ethoxylation of sorbitan esters, primarily valued for their excellent emulsifying, dispersing, and solubilizing properties. These characteristics make them indispensable for creating stable formulations across a wide range of demanding industrial and consumer applications. Key industries that rely on this product include pharmaceuticals, cosmetics, food processing, and agrochemicals, where consistent performance and quality are paramount.

Application

• As a primary emulsifier and stabilizer in pharmaceutical creams, ointments, and topical lotions.
• Used in cosmetic formulations for creams, lotions, and makeup to ensure texture stability and ingredient dispersion.
• Functions as a solubilizer for flavors, colors, and vitamins in food-grade and beverage applications.
• Employed as a dispersing agent and wetting agent in agricultural chemical formulations like pesticides and herbicides.
• Serves as an emulsifier in industrial lubricants, textile processing aids, and metalworking fluids.
• Acts as a key surfactant in household and institutional cleaning products for enhanced degreasing and soil suspension.

Basic Information

Product Name	Polysorb
CAS No.	12770-88-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polysorbate; Sorbitan, ethoxylated; Polyoxyethylene sorbitan ester; Tween (series); Ethoxylated sorbitan fatty acid ester; Sorbitan polyoxyethylene ester; Poly(oxy-1,2-ethanediyl) derivatives of sorbitan esters
EINECS	Contact for details

Quality Control

Our Polysorb products undergo rigorous quality testing to ensure compliance with industry standards, including relevant monographs for pharmaceutical (USP/EP), food (FCC), and cosmetic grades. Certificates of Analysis (COA) documenting key parameters such as assay, hydroxyl value, saponification value, and moisture content are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to amber viscous liquid
Identification (IR)	Complies
Assay	≥ 97.0% (by HPLC)
Hydroxyl Value	Contact for details
Saponification Value	Contact for details
Water Content	≤ 3.0% (by Karl Fischer)
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.