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Acidity Function of Water‐in‐Oil Microemulsions
Author(s) -
Fernández Esperanza,
GarcíaRío Luis
Publication year - 2006
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200600123
Subject(s) - microemulsion , pulmonary surfactant , chemistry , sodium , salt (chemistry) , water in oil , sodium salt , inorganic chemistry , organic chemistry , emulsion , biochemistry
Microenvironments: Strongly acidic microemulsions are obtained by merely adjusting the water‐to‐surfactant ratio W in the HOT/isooctane/water system (HOT=H + ‐exchanged sodium salt of bis(2‐ethylhexyl)sulfosuccinate). Acidity functions H 0 ranging from H 0 =−2 for W =1 to H 0 =0.5 for W =30 are determined (see picture). Such acidities cannot be attained by addition of strong acids to the corresponding NaOT‐based microemulsions.