Abstract

The absorption spectra of absolute ethyl alcohol and alcohol containing water were studied in the region from 1.5μ to 5μ. In the water-alcohol mixtures there appeared a band at 2.8μ not characteristic of either alcohol or water. For small concentrations of water the intensity of this band was found to increase with increasing water content. The presence of the band at 2.8μ was interpreted as indication of association between the water and alcohol molecules. This result is in agreement with the anomalous changes in volume and in specific heat which take place in mixtures of alcohol and water.

© 1936 Optical Society of America

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References

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  1. E. K. Plyler and E. S. Barr, J. Chem. Phys. 2, 306 (1934);E. K. Plyler and W. Gordy, J. Chem. Phys. 2, 470 (1934).
    [Crossref]
  2. E. K. Plyler and F. D. Williams, J. Chem. Phys. 2, 565 (1934).
    [Crossref]
  3. H. S. Taylor, Treatise on Physical Chemistry (D. V. Nostrand Co., 1930), p. 334.
  4. E. K. Plyler and T. Burdine, Phys. Rev. 35, 605 (1930).
    [Crossref]
  5. J. W. Ellis, Phys. Rev. 38, 693 (1931).
    [Crossref]

1934 (2)

E. K. Plyler and E. S. Barr, J. Chem. Phys. 2, 306 (1934);E. K. Plyler and W. Gordy, J. Chem. Phys. 2, 470 (1934).
[Crossref]

E. K. Plyler and F. D. Williams, J. Chem. Phys. 2, 565 (1934).
[Crossref]

1931 (1)

J. W. Ellis, Phys. Rev. 38, 693 (1931).
[Crossref]

1930 (1)

E. K. Plyler and T. Burdine, Phys. Rev. 35, 605 (1930).
[Crossref]

Barr, E. S.

E. K. Plyler and E. S. Barr, J. Chem. Phys. 2, 306 (1934);E. K. Plyler and W. Gordy, J. Chem. Phys. 2, 470 (1934).
[Crossref]

Burdine, T.

E. K. Plyler and T. Burdine, Phys. Rev. 35, 605 (1930).
[Crossref]

Ellis, J. W.

J. W. Ellis, Phys. Rev. 38, 693 (1931).
[Crossref]

Plyler, E. K.

E. K. Plyler and F. D. Williams, J. Chem. Phys. 2, 565 (1934).
[Crossref]

E. K. Plyler and E. S. Barr, J. Chem. Phys. 2, 306 (1934);E. K. Plyler and W. Gordy, J. Chem. Phys. 2, 470 (1934).
[Crossref]

E. K. Plyler and T. Burdine, Phys. Rev. 35, 605 (1930).
[Crossref]

Taylor, H. S.

H. S. Taylor, Treatise on Physical Chemistry (D. V. Nostrand Co., 1930), p. 334.

Williams, F. D.

E. K. Plyler and F. D. Williams, J. Chem. Phys. 2, 565 (1934).
[Crossref]

J. Chem. Phys. (2)

E. K. Plyler and E. S. Barr, J. Chem. Phys. 2, 306 (1934);E. K. Plyler and W. Gordy, J. Chem. Phys. 2, 470 (1934).
[Crossref]

E. K. Plyler and F. D. Williams, J. Chem. Phys. 2, 565 (1934).
[Crossref]

Phys. Rev. (2)

E. K. Plyler and T. Burdine, Phys. Rev. 35, 605 (1930).
[Crossref]

J. W. Ellis, Phys. Rev. 38, 693 (1931).
[Crossref]

Other (1)

H. S. Taylor, Treatise on Physical Chemistry (D. V. Nostrand Co., 1930), p. 334.

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Figures (4)

Fig. 1
Fig. 1

The transmission of alcohol and an alcohol-water mixture in the region from 2.6μ to 3.2μ. (a) and (b), absolute alcohol; (c) and (d), 95 percent alcohol.

Fig. 2
Fig. 2

The transmission of absolute alcohol and three water-alcohol mixtures in the region 2.6μ to 3.6μ. Cell thickness, 0.01 mm.

Fig. 3
Fig. 3

Transmission of two water-alcohol mixtures and of pure water. Cell thickness, 0.03 mm.

Fig. 4
Fig. 4

Transmission of pure alcohol and two water-alcohol mixtures near the 4.7μ water band. Cell thickness, 0.05 mm.