An X-Ray Study of Sulphuric and Orthophosphoric Acids


THE study of X-ray diffraction patterns of liquids is one of the least indirect means of obtaining information concerning their structure, but the amount of information is restricted by the limitations of the theory. The straightforward application of the original Debye theory1 leads to an expression for the intensity of scattering where I0 is the intensity of the incident beam, P is the polarization factor, R the distance from specimen to point of observation; 4r2g(r)dr represents the number of atoms or molecules lying within radii r and r + dr; is the mean density in atoms or molecules per c.c., e, m and c have their usual significance, and s = 4 sin /, where is half the scattering angle.


  1. 1

    Debye, Ann. Phys., 46, 809 (1915).

  2. 2

    Debye and Menke, Phys. Z., 31, 797 (1930).

  3. 3

    Tarasov and Warren, J. Chem. Phys., 4, 236 (1936).

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RANDALL, J. An X-Ray Study of Sulphuric and Orthophosphoric Acids. Nature 138, 842 (1936).

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