Polysorbate 80 (Tween® 80)

Catalog Number: ASC-1066

Overview

Polysorbate 80, also known as Tween® 80, is a nonionic surfactant and emulsifier widely utilized across various industries, including pharmaceuticals, food, cosmetics, and biotechnology. Its ability to stabilize emulsions and enhance solubility makes it an essential ingredient in numerous formulations.

Chemical Identity

Chemical Name: Polyoxyethylene (20) sorbitan monooleate
Synonyms: Tween® 80, E433
CAS Number: 9005-65-6
Molecular Formula: C₆₄H₁₂₄O₂₆
Molar Mass: Approximately 1,310 g/mol

Specifications

Appearance: Viscous, yellow to amber liquid
Density: 1.06 – 1.09 g/cm³ at 25°C
Refractive Index: 1.4700 – 1.4760 at 20°C
Saponification Value: 45 – 55 mg KOH/g
Hydroxyl Value: 65 – 80 mg KOH/g
Boiling Point: 100°C
Flash Point: 113°C
Solubility: Soluble in water, ethanol, and methanol
Storage Conditions: Store at 15°C to 25°C

Applications

Pharmaceuticals: Serves as an emulsifier and solubilizer in oral and topical formulations, and stabilizes aqueous formulations for parenteral administration.
Food Industry: Functions as an emulsifier (E433) in products like ice cream, salad dressings, and sauces to improve texture and shelf life.
Cosmetics: Used in lotions, creams, and other personal care products to stabilize emulsions and enhance product consistency.
Biotechnology: Employed in the culture of Mycobacterium tuberculosis and in various laboratory applications requiring emulsification.

Packaging Options