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Surface activity of mixtures of narrow‐range distributed alcohol oxyethylates and sodium dodecylbenzenesulfonate
Author(s) -
Zimoch J.,
Błaszczak J.,
Szarzyńska K.,
Hrecuch W.,
Szymanowski J.
Publication year - 1999
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-999-0095-2
Subject(s) - sodium dodecylbenzenesulfonate , chemistry , pulmonary surfactant , surface tension , ionic bonding , sodium , alcohol , emulsion , nonionic surfactant , chemical engineering , inorganic chemistry , organic chemistry , ion , thermodynamics , biochemistry , physics , engineering
Surface and interfacial tension, emulsion inversion temperature, and detergency were determined for mixtures of sodium dodecylbenzenesulfonate and narrow‐range distributed alcohol C 12 −C 14 oxyethylates of different hydrophilicity. The mixtures of ionic and nonionic surfactants behave similarly to nonionic and ionic surfactants at the air/water and hydrocarbon/water interfaces, respectively. The air/water interface is mainly occupied by nonionic surfactant molecules. However, the interfacial tensions for mixtures of nonionic and ionic surfactants are similar to those of sodium dodecylbenzenesulfonate. Mixtures of narrow‐range distributed oxyethylates and sodium dodecylbenzenesulfonate have a higher detergency at 40°C than individual components.