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A relationship between foaming and H.L.B. value
Author(s) -
BADWAN A.A.,
CHAM T.M.,
JAMES K.C.,
PUGH W.J.
Publication year - 1980
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/j.1467-2494.1980.tb00233.x
Subject(s) - pulmonary surfactant , chemistry , limiting , triethanolamine , chromatography , analytical chemistry (journal) , biochemistry , mechanical engineering , engineering
Synopsis The foaming properties of solutions of purified samples of the C 10 to C 18 even‐numbered sodium alkyl sulphates in water have been studied using three methods of foam generation. Foam volumes increased with increase in surfactant concentration, and reached a limiting value at the C.M.C. At post‐C.M.C. concentrations, foam volumes increased to a maximum with temperature, and then decreased. The point at which the maximum occurred, the maximum foam temperature (M.F.T.), varied from one surfactant to another, but was independent of the experimental method. M.F.T. was inversely proportional to the hydrophile‐lipophile balance (H.L.B.) value. The corresponding triethanolamine salts behaved in the same way. Similar results were observed with non‐ionics, but the plots of H.L.B. value against M.F.T. were positive. Relation entre le pouvoir moussant et la valeur H.L.B.