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Considerations on formation and stability of Oil/Water dispersed systems
Author(s) -
Rosano H. L.,
Jon D.,
Whittam J. H.
Publication year - 1982
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02541020
Subject(s) - emulsion , toluene , pulmonary surfactant , surface tension , sodium dodecyl sulfate , chemical engineering , steric effects , phase (matter) , sodium , chemistry , butanol , volume (thermodynamics) , nonionic surfactant , stability (learning theory) , thermodynamics , materials science , chromatography , organic chemistry , ethanol , computer science , physics , engineering , machine learning
Two systems: (a) a costabilized system of toluene/water/1‐propanol, and (b) an emulsion system of toluene/sodium dodecyl sulfate/1‐butanol/NaCl solution are used as examples to provide some general observations on emulsion formation and stability. Phase volume and interfacial tension measurements indicate that the requirement for formation of O/W systems is low γ i , but for overall stability, γ i must be positive and of significant value in addition to any steric barrier at the interface. An approximate calculation of the amount of surfactant needed to fill the interface provides a guide for preparation of such systems.