Abstract
ALTHOUGH satisfactory methods are available1,2 for the determination of anionic and cationic active agents, no method has hitherto been found for surface-active agents which do not ionize in solution. Compounds of this type are prepared by the action of ethylene oxide on organic bodies containing OH-groups and have the basic structure, RO(CH2CH2O)nH, in which R may be an aliphatic and/or hydrocarbon residue. Since these compounds are achieving growing importance as detergents, wetting agents and emulsifying agents, the need for a method of determination has become urgent.
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References
Barr, T., Oliver, J., and Stubbings, W. V., J. Soc. Chem. Indust., 67, 45 (1948).
Epton, S. R., Nature, 160, 795 (1947).
Shaffer, C. B., and Critchfield, F. H., Indust. Eng. Chem., Anal. Ed., 19, 32 (1947).
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OLIVER, J., PRESTON, C. Estimation of Non-Ionic Detergents. Nature 164, 242–243 (1949). https://doi.org/10.1038/164242b0
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DOI: https://doi.org/10.1038/164242b0
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