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Synthetic detergents from animal fats. X. Sulfated, ethenoxylated tallow alcohols

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Journal of the American Oil Chemists Society

Summary

Sulfated ethenoxylated tallow alcohols of average composition corresponding to the formulas C16H33(OC2H4)2OSO3Na, C18H37(OC2H4)2OSO3Na, and C18H37(OC2H4)10OSO3Na, were prepared by ethenoxylation and sulfation of hexadecanol and octadecanol.

The incorporation of two ethenoxy groups improved solubility without loss in detergency compared to the corresponding sodium hexadecyl and octadecyl sulfates. With consideration also of economy in the number of ethenoxy groups, two appear to be near the optimum. The product with 10 ethenoxy groups was an even more readily soluble but less effective detergent.

Of the sulfated ethenoxylated tallow alcohols, sodium hexadecyloxyethoxyethyl sulfate [C16H33(OC2H4)2OSO3Na] had the lowest surface-tension and the best foaming properties; sodium octadecyloxyethoxyethyl sulfate [C18H37(OC2H4)2OSO3Na] was the best emulsifying agent; and the product with 10 ethenoxy groups [C18H37(OC2H4)10OSO3Na] had the greatest stability in regard to metallic ions and to acid hydrolysis.

All three were excellent lime-soap dispersing agents with good or excellent emulsifying properties and stability in regard to metallic ions.

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Authors and Affiliations

  1. Eastern Regional Research Laboratory, Philadelphia, Pa.

    R. G. Bistline Jr., A. J. Stirton, J. K. Weil & E. W. Maurer

Authors
  1. R. G. Bistline Jr.
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  2. A. J. Stirton
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  3. J. K. Weil
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  4. E. W. Maurer
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Additional information

For number IX in this series see reference (18).

A laboratoryof the Utilization Research and Development Division, Agricultural Research Service, U. S. Department of Agriculture.

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Bistline, R.G., Stirton, A.J., Weil, J.K. et al. Synthetic detergents from animal fats. X. Sulfated, ethenoxylated tallow alcohols. J Am Oil Chem Soc 34, 516–518 (1957). https://doi.org/10.1007/BF02638081

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  • DOI: https://doi.org/10.1007/BF02638081

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