Excerpt from Compound Formation, Solubility, and Ionization in Fused Salt Mixtures: II, Compound Formation Between Antimony and Aluminium Chlorides and Other Metallic Chlorides
1. What was attempted?
2. In how far were the attempts successful?
3. What contribution actually new to the science of chemistry has been made?
1. The attempt was made to demonstrate the applicability of rules previously formulated governing the variation of addition compound formation to fused salt mixtures. Systems of the type RCl-R"Cl were chosen, the particular systems studied being antimony trichloride - metallic chloride, and aluminium chloride metallic chloride.
2. (a) It has been shown that compound formation and solubility increase with the diversity between Rand R. This diversity, measured by the relative positions of Rand Rin the electromotive series, is the main factor, but there are additional points which must be taken into account.
(b) It has been shown that of these additional factors the most important is valence.
(c) The stability of compounds is greatest when the temperature of fusion is low.
(d) Large differences in internal pressures tend toward the formation of two liquid layers.
3. (a) The initial steps in the formulation of a generalized theory of ionization have received additional experimental confirmation.
(b) Twenty-eight new systems have been investigated by the freezing point method.
(c) Seventeen compounds have been isolated for the first time.
(d) Two new crystalline modifications of antimony trichloride have been discovered.
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