Über die Konstitution einiger in Quecksilber aufgelöster Metalle

Smith, George Mc Phail

doi:10.1002/zaac.19140880113

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Nevertheless, many means of analysis of diffusion data in amalgams may be found in the literature according to other equations [91][92][93][94][95]. One should also mention the popular approach by Stromberg and Zakharova [96] and Gladyshev [97] who analysed the diffusion data using Equation 7 with a numerical coefficient of 6 instead of 4, and substituting the crystallographical radii of metallic ions at valencies not higher than + 3. it must be pointed out here that Equation 7 with the coefficient 6 is only correct when a diffusing solute particle has a radius much higher than the radius of the solvent particle [69,87].…”

Section: Diffusion Coefficients Of Metals In Liquid Mercurymentioning

confidence: 99%

“…Many years ago, Smith [91], first pointed out the diffusion of metallic solvates in mercury and formulated a quantitative dependence. The composition of the diffusing solvate may be estimated by assuming a spherical arrangement of mercury atoms around the metal; a close packing of space with a coefficient of 0.74 [101] was taken in our calculations.…”

Section: Diffusion Coefficients Of Metals In Liquid Mercurymentioning

confidence: 99%

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Review Selected properties of simple amalgams

Gumiński

1989

J Mater Sci

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Experimental data on solubility, heat and kinetics of dissolution, diffusion and standard potentials of metals in mercury as well as the rate of the electrode process with an amalgam formation, have been collected and selected. A comparison has been made between the measured and predicted solubilities and heats of dissolution. The experimental diffusion coefficients have been analysed according to the simple Sutherland-Einstein equation; the average composition of diffusing particles in diluted amalgams have been estimated. The linear dependence between the logarithm of the rate constant of aquo-ion electroreduction on mercury and the metal solubility in mercury has been confirmed. No correlation of the dissolution rate of metals in mercury has been found. IntroductionIndisputably mercury (Hg), is the metal (M), most frequently used in pure and applied electrochemistry; other applications of mercury in metallurgy, inorganic and organic synthesis, dentistry, electronics, electrotechnics as well as heat transfer, seem to be less significant. From a scientific point of view, liquid mercury and amalgams are generally good models for liquid metals and alloys. For amalgams alone we have a fair collection of reliable data on thermodynamics, solubility and diffusion. Nevertheless, mercury and amalgams are not placed in the main stream of either solution chemistry or metal science.In the present paper an essential collection and evaluation has been achieved of the following data: the type of phase diagram M-Hg, solubility of the metal in mercury, heat and kinetics of dissolution of the metal in mercury, activity and diffusion coefficients of the metal in mercury, standard potentials of amalgams, kinetics of electroreduction of M n+ aquoions on mercury electrode. Most of these features change periodically through the elements table and show mutual interrelations. When possible, the experimental data (solubility, heat of dissolution, diffusion) are compared with theoretical predictions.

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Section: Diffusion Coefficients Of Metals In Liquid Mercurymentioning

confidence: 99%

Section: Diffusion Coefficients Of Metals In Liquid Mercurymentioning

confidence: 99%

Review Selected properties of simple amalgams

Gumiński

1989

J Mater Sci

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Experimentelle anorganische Chemie und Elektrochemie im Jahre 1914

Gutbier¹

1915

Angewandte Chemie

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Das Zustandsdiagramm Calcium/Quecksilber

Eilert

1926

Z. Anorg. Allg. Chem.

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Die thermische Analyse ergibt im Einklang mit entsprechenden mikrophotographischen Aufnahmen bzw. ergänzt durch diese, daß aus Ca‐Amalgamen mit mehr als 2,15 Gew.‐% Ca primär die Kristallart CaHg3, sich ausscheidet. Diese reagiert bei 265° mit einer Schmelze von 2,15% Ca‐Gehalt unter Bildung der Kristallart CaHg5. Die Reaktion verläuft vollständig. Die Kristallart CaHg5 wird auch durch direkte Analyse gutausgebildeter einzelner Kristalle bestätigt. Bei + 84° reagieren die CaHg5‐Kristalle mit einer Schmelze von 0,8% Ca‐Gehalt. Es entsteht hierdurch die Kristallart CaHg10. Diese Reaktion verläuft äußerst langsam und bei gewöhnlicher Abkühlung nicht vollständig.

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Über die Konstitution einiger in Quecksilber aufgelöster Metalle

Cited by 5 publications

References 10 publications

Review Selected properties of simple amalgams

Review Selected properties of simple amalgams

Experimentelle anorganische Chemie und Elektrochemie im Jahre 1914

Das Zustandsdiagramm Calcium/Quecksilber

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