FURTHER STUDIES CONCERNING GALLIUM. Its Electrolytic Behavior, Purification, Melting Point, Density, Coefficient of Expansion, Compressibility, Surface Tension, and Latent Heat of Fusion.
FURTHER STUDIES CONCERNING GALLIUM. Its Electrolytic Behavior, Purification, Melting Point, Density, Coefficient of Expansion, Compressibility, Surface Tension, and Latent Heat of Fusion.
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关于镓的进一步研究。
DOI：
10.1021/ja01435a005
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发表时间：
1921
影响因子：
15
通讯作者：
S. Boyer
中科院分区：
文献类型：
--
作者：
T. W. Richards;S. Boyer
I.电解行为。Introduction.--在这项研究中，镓的电解行为的研究自然是优先的，因为这种行为对制备其余工作所需的材料有着重要的影响。早期研究镓的实验者通常使用电解法，而不是将其作为一种提纯方法，使金属从提纯的盐中沉淀出来。在最近的一篇论文中，丹尼斯和布里奇曼指出了电解对后一目的的价值。独立地，我们也同时使用了电解。早期的实验者通常使用碱性溶液，而丹尼斯和布里奇曼，以及我们自己，则使用不含碱盐的或多或少的酸性溶液，从而消除了碱金属污染的危险。虽然最近研究的结论大体上是一致的，但在完全一致和理解之前，有几个模糊的问题需要澄清。特别要研究的要点如下：第一，镓的单电极电位，第二，铟、锌和镓的沉淀顺序，从几种不同酸度的溶液中用几种不同的电流密度。
I. Electrolytic Behavior. Introduction.-—The study of the electrolytic behavior of gallium naturally had precedence in this investigation, because this behavior had an important bearing on the preparation of the material needed for the rest of thework. The earlier experimenters upon gallium commonly used electrolysisrather as a means of precipitating the metal from purified salts than as a means of purification. In a recent paper, Dennis and Bridgman1 have pointed out the value of electrolysis for the latter pur-pose. Independently, we also had simultaneously thus used electrolysis.-Whereas the earlier experimenters commonly used alkaline solutions, Dennis and Bridgman, as well as ourselves, worked with more or less acid ones, free from alkali salts, thus eliminating the danger ofcontam-ination with alkali metals.Although in the main the verdicts of the recent researches agree, several obscure points need elucidation before the matter is entirely con-sistent and comprehensible. The points especially to be investigated were the following: first, the single electrode potential of gallium, and secondly, the order of precipitation of indium, zinc and gallium, with several different current densities from solutions of several different acidities.