Estimation hydrophilic-lipophilic balance number of surfactants

Any type of surfactant has a hydrophilic-lipophilic balance number (HLB number) of different. There are several methods for determining the HLB number, with ohysical properties of surfactant (solubility cloud point and interfacial tension), CMC methods and by thermodynamics properties (Free energy G...

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Bibliographic Details
Main Authors: Pawignya, Harsa, Prasetyaningrum, Aji, Dyartanti, Endah R., Kusworo, Tutuk D., Pramudono, Bambang
Format: Conference Proceeding
Language:English
Subjects:
Activity coefficients
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Free energy
FREE ENTHALPY
Gibbs free energy
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
MIXTURES
REACTION KINETICS
SOLUBILITY
SURFACE TENSION
SURFACTANTS
THERMODYNAMICS
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Summary:Any type of surfactant has a hydrophilic-lipophilic balance number (HLB number) of different. There are several methods for determining the HLB number, with ohysical properties of surfactant (solubility cloud point and interfacial tension), CMC methods and by thermodynamics properties (Free energy Gibbs). This paper proposes to determined HLB numbers from interfelation methods. The result of study indicated that the CMC method described by Hair and Moulik espesially for nonionic surfactant. The application of exess Gibbs free energy and by implication activity coefficient provides the ability to predict the behavior of surfactants in multi component mixtures of different concentration. Determination of HLB number by solubility and cloud point parameter is spesific for anionic and nonionic surfactant but this methods not available for cationic surfactants.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4941521