[185] Walker and Cornack, J. Chem. Soc. (London), 77, 20 (1900).

[186] McCoy, Am. Chem. J., 29, 437 (1903); Stieglitz, Carnegie Institution Publications, No. 107, p. 245 (1909).

[187] In a solution of phosphoric acid, all the possible forms of ionization, described in the text, occur simultaneously, but the secondary and tertiary forms of ionization, as far as the concentration of the hydrogen-ion is concerned, are entirely subordinate to the primary ionization.

[188] Vide footnote, p. [79].

[189] Luther, Z. Elektrochem., 3, 296 (1907). Noyes and Eastman, Carnegie Institution Publications, 63, 274 (1907). Noyes and Stewart, J. Am. Chem. Soc., 32, 1133 (1910).

[190] The apparatus described on p. [77] is used. Vide Noyes and Blanchard, loc. cit.

[191] Hydrogen ions move five to ten times as fast as the anions and carry 80–90 per cent of the current; see p. [56].

[192] The solution of these salts is due to the action of hydrogen ions on their anions; see Chap. VIII.

[193] Goodwin, Z. phys. Chem., 21, 1 (1896).

[194] See Kohlrausch and Holborn, loc. cit., p. 194. Their values for K (last column) must be divided by 100 to express the constants in terms of the same units as those used in the above table.