Description

Polysorbate 8 is a non-ionic surfactant and emulsifier derived from oleic acid and sorbitol. This versatile compound is valued for its ability to stabilize emulsions, solubilize oils and fragrances, and modify surface tension in complex formulations. It is essential for manufacturers in the pharmaceutical, cosmetic, and food industries seeking reliable, multifunctional ingredients for product development and process optimization.

Application

• Pharmaceuticals: Used as a solubilizing agent and emulsifier in topical creams, ointments, and oral liquid formulations.
• Cosmetics & Personal Care: Functions as a key emulsifier and stabilizer in lotions, creams, and makeup products to ensure uniform texture and consistency.
• Food Industry: Employed as an emulsifier and dispersing agent in certain food-grade applications, such as flavor emulsions and bakery products.
• Industrial Applications: Acts as a surfactant in textile processing, leather treatment, and as a component in pesticide and herbicide formulations.
• Laboratory Research: Serves as a non-ionic detergent in biochemical research for cell lysis and protein isolation procedures.

Basic Information

Product Name	Polysorbate 8
CAS No.	9009-51-2
Molecular Formula	C64H124O26
Molecular Weight	~1310 g/mol (Average)
Synonyms	Polyoxyethylene (20) sorbitan monooleate; POE (20) sorbitan monooleate; Tween® 80; Polysorbate 80; Sorbitan mono-9-octadecenoate poly(oxy-1,2-ethanediyl) derivatives; (Z)-Monooctadec-9-enoic acid sorbitan ester ethoxylate; E433
EINECS	215-665-4

Quality Control

Our Polysorbate 8 is produced under a strict quality management system. It can be supplied in various grades, including technical and high-purity grades suitable for pharmaceutical (USP/EP) or food (FCC) applications where specified. All batches undergo rigorous analytical testing to ensure identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters 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, well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent caking and hydrolysis. For long-term storage, consider using an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	Amber to yellow viscous liquid
Identification (IR)	Conforms
Assay (Oxyethylene Content)	Contact for details
Water Content (KF)	≤ 3.0 %
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	45 - 55 mg KOH/g
Hydroxyl Value	65 - 80 mg KOH/g
Residue on Ignition	≤ 0.25 %
Heavy Metals (as Pb)	≤ 10 ppm

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