The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2.: With Special Consideration of the Application of the Laws of Equilibrium and of the Modern Theories of Solution.Stieglitz, Julius
Science
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2.: With Special Consideration of the Application of the Laws of Equilibrium and of the Modern Theories of Solution.
Stieglitz, Julius
Chemistry, Analytic -- Qualitative
[65] See Washburn, ‹J. Am. Chem. Soc.›, «31», 322 (1909), in regard
to the values of ‹x› and ‹y›, the quantities of water carried by
certain ions.
[66] ‹Vide› J. J. Thomson, ‹Electricity and Matter› (1905) and
‹Corpuscular Theory of Matter› (1907) («Stud.»). ‹Vide› R.
A. Millikan, ‹Science›, «32», 436 (1910), on the discrete or
"granular" nature of electricity («Stud.»).
[67] See ‹Millikan›, ‹loc. cit.›, as to the exact value of this
"unit charge."
[68] ‹Cf.› McCoy, ‹J. Am. Chem. Soc.›, «33», March, 1911, in regard
to electropositive, composite (‹i.e.› nonelementary) "metals."
[69] The symbol ε is used to designate an electron. The loss of one
electron by an atom leaves a ‹unit positive charge› on the particle.
[70] In Chapter XV (‹q. v.›) the affinity of the elements for
electrons and the reactions, of the nature of oxidation and
reduction, depending on this affinity, are discussed in detail.
[71] J. J. Thomson, ‹Corpuscular Theory of Matter›, p. 120.
[72] A. A. Noyes (‹Carnegie Institution Publications›, No. «63», p.
351 (1907)), believes that we may have two ‹kinds of molecules›,
HCl and H^{+}Cl^{−}, as well as the ions H^{+} and Cl^{−}.
[73] Modern theory thus is reverting to the Berzelius theory
of chemical affinity [‹Vide› Meyer's ‹History of Chemistry›
(translated by M'Gowan) 1891, 220–265, or Ladenburg's ‹History of
Chemistry› (translated by Dobbin) 1900, 86, 88, etc.]
[74] To a saturated solution of cupric nitrate may be added a
small amount of a saturated solution of potassium permanganate,
sufficient to give a decided purple color to the mixture. Potassium
chromate, as recommended by A. A. Noyes, may be used in place of
the permanganate. (‹Cf.› Noyes and Blanchard, ‹J. Am. Chem. Soc.›,
«22», 726 (1900).)
[75] ‹Exp.›; ‹cf.› Eckstein, ‹J. Am. Chem. Soc.›, «27», 759 (1905)
(«Stud.»).
[76] W. A. Noyes, ‹J. Am. Chem. Soc.›, «23», 460 (1901); Stieglitz,
‹ibid.›, «23», 796 (1901); Walden, ‹Z. phys. Chem.›, «43», 385
(1903).
[77] ‹Corpuscular Theory of Matter›, p. 130 (1907).
[78] The experiment is an adaptation of a similar one described by
A. A. Noyes and Blanchard, ‹J. Am. Chem. Soc.›, «22», 726 (1900).
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