Abstract
THE sodium salts of α-sulpho fatty esters (R CH(SO3Na)-COOR′) behave as either wetting agents or as detergents depending on the length of the acid and alcohol chains (R and R′). In practice, if either R or R′ is long and the other chain short, then the surfactant behaves as a detergent; if both R and R′ are of the same medium chain length, then the surfactant functions as a wetting agent. The ability of a compound to act as a detergent was rated on the basis of ‘Terg-O-Tometer’ tests and wetting ability was assessed using the Draves test1,2.
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Draves, C. Z., and Clarkson, R. G., Amer. Dyestuff Rep., 20, 201 (1931).
See Amer. Assoc. Tech. Chem. Color. Tech. Manual, 36, 161 (1960).
Boucher, E. A., Grinchuk, T. M., and Zettlemoyer, A. C., Paper presented at Amer. Oil Chem. Soc. Meet., New Orleans, May 1967.
Subba Rao, V. V., Fix, R. J., and Zettlemoyer, A. C., Paper presented at Amer. Oil Chem. Soc. Meet., Chicago, October 1967.
Jaycock, M. J., and Ottewill, R. H., Fourth Intern. Cong. Surface Active Substances, Brussels, 1964.
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ZETTLEMOYER, A., SUBBA RAO, V. & FIX, R. Rates of Adsorption of Wetting Agents and Detergents at ‘Graphon’ Solution Interface. Nature 216, 683 (1967). https://doi.org/10.1038/216683a0
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DOI: https://doi.org/10.1038/216683a0
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Rates of Adsorption of Wetting Agents and Detergents
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