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Dipalladium pentarth

Dipalladium pentartum is a binary inorganic compound, palladium and mercury intermetallide with the formula Hg 5 Pd 2 , crystals.

Dipalladium pentarth
Are common
Systematic
name
Dipalladium pentarth
Traditional namesPentartutydipalladium
Chem. formulaPd 2 Hg 5
Rat formulaHg 5 Pd 2
Physical properties
conditioncrystals
Molar mass1215.79 g / mol
Density14.8 g / cm³
Thermal properties
T. decomp.238 ° C
Classification
Reg. CAS number12162-38-8

Getting

  • Fusion of stoichiometric amounts of pure substances:
2Pd+fiveHg→238oCHgfivePd2{\ displaystyle {\ mathsf {2Pd + 5Hg \ {\ xrightarrow {238 ^ {o} C}} \ Hg_ {5} Pd_ {2}}}}  

Physical Properties

Dipalladium pentartum forms tetragonal crystals, space group P 4 / mbm , cell parameters a = 0.9463 nm, c = 0.3031 nm, Z = 2, structure of the type dimarganese pentartarty Hg 5 Mn 2 [1] [2] [3] [ 4] .

The compound is formed during the peritectic reaction at a temperature of 238 ° C [1] .

Notes

  1. ↑ 1 2 State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Metallurgy, 1997 .-- T. 2 .-- 1024 p. - ISBN 5-217-01569-1 .
  2. ↑ B. Predel. Hg-Pd (Mercury-Palladium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1997. - T. 5G . - S. 1-2 . - DOI : 10.1007 / 10506626_1636 .
  3. ↑ C. Guminski. The Hg-Pd (Mercury-Palladium) system // Bulletin of Alloy Phase Diagrams. - 1990. - T. 11 , No. 1 . - S. 22-26 . - DOI : 10.1007 / BF02841580 .
  4. ↑ P. Ettmayer. Die Kristallstruktur von Pd 2 Hg 5 // Monatshefte für Chemie und verwandte Teile anderer Wissenschaften. - 1965. - T. 96 , No. 3 . - S. 884-888 . - DOI : 10.1007 / BF00919161 .



Source - https://ru.wikipedia.org/w/index.php?title=Dipalladium Pentartum &oldid = 80967049


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