The interaction of dimethyl ditallow ammonium chloride and sodium linear alkylbenzene sulfonate

The interaction of dimethyl ditallow ammonium chloride and sodium linear alkylbenzene sulfonate

The interaction of a commercial sample of dimethyl ditallow ammonium chloride (Adogen® 470E) and sodium alkylbenzene sulfonate (C‐550 LAS) in aqueous solution was examined. Interaction was very strong, with the ion pair association constant estimated to be 1 × 106 1/mol. At laundry use level concent...

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Bibliographic Details
Published in:Journal of the American Oil Chemists' Society Vol. 66; no. 5; pp. 718 - 727
Main Authors: Smith, Dewey L., Cox, Michael F., Russell, G. L., Earl, Gary W., Lacke, Phillip M., Mays, Richard L., Fink, Jean M.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer-Verlag 01-05-1989
Springer
Subjects:
Applied sciences
Chemical industry and chemicals
Exact sciences and technology
Washing products
Washing products. Cosmetics and toiletries. Perfumes
Performance evaluation
Anionic surfactant
Detergent
Chemical reaction
Softening agent
Ion pair
Cationic surfactant
Raw materials
Aqueous solution
Antistatic agent
Mechanism of action
Mixture
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Summary:The interaction of a commercial sample of dimethyl ditallow ammonium chloride (Adogen® 470E) and sodium alkylbenzene sulfonate (C‐550 LAS) in aqueous solution was examined. Interaction was very strong, with the ion pair association constant estimated to be 1 × 106 1/mol. At laundry use level concentrations, the mixtures were turbid. The highest turbidity was found at equimolar concentrations of C‐550 LAS and Adogen® 470E. Turbidity was assumed to be due to the formation of an insoluble 1:1 complex. Both filtered and unfiltered mixtures of C‐550 LAS and Adogen® 470E were evaluated for detergency, softening and antistat performance. As the mixtures approached 1:1 stoichiometry, detergency decreased and softening and antistat performance improved. Lower detergency was explained by the loss from solution of LAS to form a 1:1 LAS‐dimethyl ditallow ammonium complex. Improved softening and antistat perfromance were explained by adsorption of the insoluble complex on the cloth.
Bibliography:Presented May 10, 1988 at the 79th Annual AOCS Meeting, in Phoenix, Arizona.
ISSN:0003-021X
1558-9331
DOI:10.1007/BF02669960