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Surfactant

Surfactants are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid. Surfactants can be used as detergents, wetting agents, emulsifiers, foaming agents and dispersants. Visit http://www.alfa-chemistry.com/products/surfactant-124.htm for more information.

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Surfactant

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  1. Surfactant Alfa Chemistry

  2. Contents 1 Overview 2 Classification Of Surfactant 3 Applications 4 Contact us

  3. Overview Surface tension Two liquids A gas and a liquid, A liquid and a solid

  4. 2 Overview Hydrophobic groups Hydrophilic groups Amphiphilic A surfactant contains both a component and a water-soluble component Activity Surfactants will diffuse in water and adsorb at interfaces between air and water or at the interface between oil and water, in the case where water is mixed with oil. The water- insoluble hydrophobic group may extend out of the bulk water phase, into the air or into the oil phase, while the water-soluble head group remains in the water phase.。

  5. 2 Overview Hydrophobic tails The hydrophobic tails of the surfactant ions remain inside the oil because they interact more strongly with oil than with water. Hydrophilic Head The hydrophilic heads of the surfactant molecules coating the micelle interact more strongly with water, so they form a hydrophilic outer layer that forms a barrier between micelles.

  6. 1 Nonionic Surfactant Anionic Surfactant Classification Of Surfactant 2 3 Cationic Surfactant Amphoteric Surfactant 4

  7. 1 Nonionic Surfactant Water-solubility The water-solubility of the oxygen groups is the result of hydrogen bonding. Hydrogen bonding Hydrogen bonding decreases with increasing temperature, and the water solubility of nonionic surfactants therefore decreases with increasing temperature.

  8. 2 Anionic Surfactant Sulfate Phosphate Sulfonate Carboxylate Ammonium lauryl sulfate Sodium lauryl sulfate Sodium laureth sulfate Sodium myreth sulfate

  9. 3 Cationic Surfactant 02 01 03 Amine salt type Quaternary ammonium salt type Heterocyclic type

  10. 4 Amphoteric Surfactant Cationic part Anionic part Be more variable Primary, secondary, or tertiary amines or quaternary ammonium cations Ø Phospholipids phosphatidylserine Ø Phosphatidylethanolamine Ø Sphingomyelins

  11. 1 Solubilization 2 Wetting agents Applications 3 Foaming and defoaming 4 Sterilization

  12. 1 Solubilization Electrolyte Structural characteristics Inorganic additives Temperature Organic additives

  13. 2 Wetting agents The purpose of adding surfactants is to increase the adhesion and deposition of the drug, and to increase the activity of active ingredient in the presence of moisture.

  14. 3 Foaming and defoaming Oil-soluble celluloses Indispensable emulsifiers Steroid hormones Suspending agents Insoluble drugs Foaming agents

  15. 4 Sterilization Preoperative skin disinfection Mucosal disinfection Device disinfection Environmental disinfection

  16. Alfa Chemistry Milligrams to Kilograms Quality & Price Technology documents

  17. CONTACT US Telephone Email 1-201-478-8534 1-516-662-5404 info@alfa-chemistry.com Fax Address 2200 Smithtown Avenue, Room 1 Ronkonkoma, NY 11779-7329 USA 1-516-927-0118

  18. Thank you！ Copyright © 2012 - 2018 Alfa Chemistry. All Rights Reserved.

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