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Tween 20 Extra Pure

Packings
500 ml
500 ml
500 ml
2.5 L
25 L
200 L

Product Information

Basic information about this product

Article No. 007365
Grade Extra Pure
Purity N/A
CAS No. 9005-64-5
Molecular Formula C58H114O26
Molecular Weight 1227.72
H.S. Code 34024200
Shelf Life 60 Months

Hazard Information

Safety and hazard classification

NO GHS NO GHS
Hazard Symbols
NO GHS

Safety Information

Important safety instructions and precautions

Signal Word: N/A
UN No.: N/A
IMCO Class No.: N/A
Packing Group: N/A
Hazardous Statement: N/A
Precaution Statement: N/A

Product Description

Detailed information about the product

Product Overview

Tween 20 Extra Pure (CAS No. 9005-64-5), commonly known as polysorbate 20, is a hydrophilic nonionic surfactant based on laurate esters of sorbitol and its anhydrides condensed with approximately 20 moles of ethylene oxide. Its combination of polyoxyethylene chains and a lipophilic fatty-acid ester portion gives the material strong wetting, emulsifying, dispersing and solubilizing properties in aqueous and mixed-phase systems.

The Extra Pure grade is suited to routine laboratory formulation and preparation work where a water-compatible nonionic surface-active agent is required. Its relatively hydrophilic character favours oil-in-water emulsification and helps incorporate hydrophobic materials into aqueous preparations, while its nonionic nature is useful where the introduction of an ionic surfactant is undesirable. Product quality is appropriately characterized through physicochemical parameters such as hydroxyl value, saponification value and density rather than by a single assay percentage.

Typical Applications

  • Preparation and stabilization of oil-in-water laboratory emulsions
  • Solubilization of hydrophobic or sparingly water-soluble materials in aqueous systems
  • Wetting of powders, solids and laboratory surfaces during dispersion procedures
  • Preparation of aqueous dispersions and surfactant-containing reagent systems
  • General laboratory formulation work requiring a hydrophilic nonionic surfactant
  • Use as a dispersing and emulsifying component in mixed-phase preparations
  • Laboratory studies involving interfacial, wetting and surfactant behaviour

Common Synonyms

  • Polysorbate 20
  • Polyoxyethylene (20) Sorbitan Monolaurate
  • Polyoxyethylene Sorbitan Monolaurate
  • POE (20) Sorbitan Monolaurate
  • Polyethylene Glycol Sorbitan Monolaurate

Storage Conditions

Store tightly closed in a cool, dry place and protect from light and excessive heat. Minimize prolonged exposure to air during storage, as polysorbate 20 can undergo oxidative degradation with formation of peroxide-containing products.