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A kinetic approach to detergent synergism
Author(s) -
Jennings Walter G.
Publication year - 1963
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/bf02645781
Subject(s) - pulmonary surfactant , arrhenius equation , cloud point , kinetics , kinetic energy , nonionic surfactant , chemistry , chemical engineering , thermodynamics , materials science , activation energy , physics , biochemistry , quantum mechanics , engineering
It is shown that kinetic theory can be applied to the removal of a heterogeneous soil by detergent solutions. By assuming first‐order kinetics, const permitting rate comparisons were calculated for the removal of baked P 32 milk films from stainless steel test discs by NaOH, a nonionic surfactant, and combinations of the two. Values for E* were obtained from Arrhenius plots. The data indicate an abrupt change in the activity of the nonionic detergent occurred as it passed through the cloud point region. Synergism was demonstrated in solutions of NaOH‐surfactant maintained below cloud point temps; at higher temps, this synergism was apparently lost. Possible explanations of synergism and detergency as affected by the could point phenomenon are discussed.