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Palladium cerium

Palladium cerium is a binary inorganic compound of palladium and cerium with the formula CePd, crystals.

Palladium cerium
General
Systematic
name
Palladium cerium
Traditional namesCerium palladium
Chem. formulaPdce
Rat formulaCepd
Physical properties
conditioncrystals
Molar mass246.54 g / mol
Density8.4 g / cm³
Thermal properties
T. melt.> 1137 ° C
Classification
Reg. CAS number12292-14-7

Getting

  • Fusion of stoichiometric amounts of pure substances:
Pd+Ce→1137oCCePd{\ displaystyle {\ mathsf {Pd + Ce \ {\ xrightarrow {1137 ^ {o} C}} \ CePd}}}  

Physical Properties

Palladium cerium forms crystals of rhombic syngony , space group C mcm , cell parameters a = 0.3918 nm, b = 1.0904 nm, c = 0.4523 nm, Z = 4, structure like chromium boride CrB [1] [2] [ 3] [4] .

The compound melts congruently at a temperature> 1137 ° C [1] , and at a temperature of 1037 ° C a phase transition occurs in the compound.

Notes

  1. ↑ 1 2 State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Mechanical Engineering, 1996. - T. 1. - 992 p. - ISBN 5-217-02688-X .
  2. ↑ H Okamoto. Ce-Pd (cerium-palladium) // Journal of Phase Equilibria. - 1991. - T. 12 , No. 6 . - S. 700-701 . - DOI : 10.1007 / BF02645180 .
  3. ↑ B. Predel. Ce-Pd (Cerium-Palladium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1993 .-- T. 5c . - S. 1-5 . - DOI : 10.1007 / 10086082_841 .
  4. ↑ B. Predel. Ce - Pd (Cerium - Palladium) // Landolt-Börnstein - Group IV Physical Chemistry. - 2012 .-- T. 12B . - S. 203 . - DOI : 10.1007 / 978-3-540-44756-6_144 .


Source - https://ru.wikipedia.org/w/index.php?title=Palladium serium&oldid = 80368228


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