Letter | Published:

Surface Tension of Strong Electrolytes

Nature volume 140, pages 464465 (11 September 1937) | Download Citation

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Abstract

Jones and Ray1 have recently found that on adding a salt to water the surface tension at first decreases, then passes through a minimum and finally at concentrations above about 0.001N increases with increase of concentration. The interionic attraction theory of surface tension developed by Wagner2 and Onsager3 on the basis of the Debye solution theory and the principles of electrostatics requires, however, the slope of the surface tension - concentration curve always to be positive and greater at the lower concentrations. The accurate results of Jones and Ray are thus seen to be in complete disagreement with theory.

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References

  1. 1.

    , , and , J. Amer. Chem. Soc., 59, 187 (1937).

  2. 2.

    , Phys. Z., 25, 474 (1924).

  3. 3.

    , and , J. Chem. Phys., 2, 528 (1934).

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  1. Chemical Laboratory, Northwestern University, Evanston, Illinois. July 19.

    • MALCOLM DOLE

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DOI

https://doi.org/10.1038/140464b0

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