Description

Polysorbate 20 is a nonionic surfactant and emulsifier derived from ethoxylated sorbitan and lauric acid. This versatile compound is essential for its ability to solubilize, disperse, and stabilize a wide range of ingredients in aqueous systems. It is a critical component for formulators in the pharmaceutical, personal care, and food industries, where consistent performance and purity are paramount.

Application

• Pharmaceuticals: Used as a solubilizing agent, emulsifier, and wetting agent in oral, topical, and parenteral formulations.
• Cosmetics & Personal Care: Acts as a primary emulsifier and solubilizer in creams, lotions, shampoos, and other products requiring oil-in-water emulsions.
• Food Industry: Employed as an emulsifier and dispersant in baked goods, ice cream, and flavoring oils (where compliant with food-grade standards).
• Biotechnology & Diagnostics: Serves as a blocking agent and stabilizer in immunoassays, cell culture media, and protein purification.
• Industrial Applications: Functions as a surfactant in textile processing, agrochemical formulations, and cleaning products.
• Liquid Supplements & Vitamins: Helps solubilize fat-soluble vitamins (A, D, E, K) in clear, aqueous-based nutritional products.

Basic Information

Product Name	Polysorbate 20
CAS No.	9005-64-5
Molecular Formula	C58H114O26 (for the main component)
Molecular Weight	~1227.5 g/mol (average)
Synonyms	Polyoxyethylene (20) sorbitan monolaurate; Tween 20; Sorbitan monolaurate ethoxylated; POE (20) sorbitan monolaurate; Polysorbatum 20; E432 (food additive number); Sorbimacrogol laurate 300
EINECS	500-019-9

Quality Control

Our Polysorbate 20 is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP-NF, EP, and JP, as well as FCC for food applications. Every batch undergoes rigorous analytical testing to ensure identity, purity, and performance. A comprehensive Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (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
Description	Clear, viscous yellow to amber liquid
Identification (IR)	Conforms
Assay (Saponification Value)	40 - 50 mg KOH/g
Hydroxyl Value	96 - 108 mg KOH/g
Acid Value	≤ 2.0 mg KOH/g
Water Content (KF)	≤ 3.0 %
Residue on Ignition	≤ 0.25 %
Heavy Metals (as Pb)	≤ 10 ppm
Color (APHA)	≤ 150

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