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Polysorbate 80

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Product Introduction

Tween 80 (Polysorbate 80) Technical Specifications and Product Description

1. Basic Information

  • Chemical Name: Polyoxyethylene (20) sorbitan monooleate

  • International Nomenclature: Polysorbate 80

  • CAS No.: 9005-65-6

  • Molecular Formula: C₆₄H₁₂₄O₂₆


2. Technical Specifications (TECHNICAL NORM)

ParameterSpecification RangeRemarks
Appearance (25°C)Amber viscous oily liquid-
Hydroxyl Value (mgKOH/g)65–82Indicates hydroxyl group content
Saponification Value (mgKOH/g)43–55Reflects ester content
Moisture Content (%)≤3-
Acid Value (mgKOH/g)≤2.0-
HLB Value15Highly hydrophilic
NoteTested in 5% NaCl solutionGood salt tolerance

3. Performance & Applications (PERFORMANCE AND APPLICATION)

Tween 80 is a versatile nonionic surfactant with the following properties and uses:

  1. Solubility:

    • Soluble in water, methanol, and ethanol; insoluble in mineral oils.

    • Functions as an emulsifier, dispersant, wetting agent, solubilizer, and stabilizer.

  2. Industrial Applications:

    • Pharmaceuticals/Cosmetics/Food: Widely used in formulations.

    • Polyurethane Foam: Acts as a stabilizer and foaming aid.

    • Synthetic Fibers: Serves as an antistatic agent and intermediate in fiber oils.

    • Photographic Films: Used as a wetting and dispersing agent.

    • Textiles: Emulsifies silicone oils for waterproofing; often blended with Span 80 (S-80).

    • Oilfield: Functions as an emulsifier, paraffin inhibitor, viscosity reducer, and wellbore treatment agent.

    • Machinery: Components in precision machine tool coolants and lubricants.

  3. Synthetic Origin:

    • Artificially synthesized nonionic emulsifier, approved for use in cosmetics, food, and pharmaceuticals.


4. Packaging & Storage (PACKAGING AND STORAGE)

  • Packaging:

    • 200 kg iron drums

    • 50 kg plastic drums

  • Storage:

    • Store in a dry, ventilated area; handle as a general chemical.

    • Shelf Life: 2 years.




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