Hexadecapalladium heptasulfide is a binary inorganic compound of palladium and sulfur with the formula Pd 16 S 7 , crystals.
| Hexadecapalladium heptasulfide | |
|---|---|
| Are common | |
| Systematic name | Hexadecapalladium heptasulfide |
| Traditional names | Palladium Sulphide |
| Chem. formula | Pd 16 S 7 |
| Physical properties | |
| condition | crystals |
| Molar mass | 1927.18 g / mol |
| Density | 8.9 g / cm³ |
| Electrical resistivity | 7.2⋅10 -6 [1] Ohm · m |
| Thermal properties | |
| T. decomp. | 623 ° C |
| Enthalpy of Education | -25 [2] kJ / mol |
| Classification | |
| Reg. CAS number | 60606-47-5 |
Content
Getting
- The mineral Vasilite - (Pd, Cu) 16 (S, Te) 7 is found in nature [3] .
- Fusion of stoichiometric amounts of pure substances:
- {\ displaystyle {\ mathsf {16Pd + 7S \ {\ xrightarrow {623 ^ {o} C}} \ Pd_ {16} S_ {7}}}}
Physical Properties
Hexadecapalladium heptasulfide forms crystals of cubic syngony , space group I 4 3m , cell parameters a = 0.89300 nm, Z = 2.
Notes
- ↑ Pablo Diaz-Chao, Isabel J. Ferrer, Jose R. Ares, Carlos Sanchez. Cubic Pd 17 S 7 as a Precursor Phase in the Formation of Tetragonal PdS by Sulfuration of Pd Thin Films // J. Phys. Chem. C. - 2009. - T. 113 , No. 13 . - S. 5329-5335 . - DOI : 10.1021 / jp810631t .
- ↑ Rongxiang Hua, Michael C. Gaoa, Ömer N. Doğan, Paul King, Michael Widom. [ http://euler.phys.cmu.edu/widom/pubs/PDF/CALPHAD34_2010_324.pdf Thermodynamic modeling of the Pd – S system supported by first-principles calculations] // CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry. - 2010. - T. 34 , No. 3 . - S. 324–331 . - DOI : 10.1016 / j.calphad . 2010.07.002 .
- ↑ Vasilith. Material from GeoWiki, an open encyclopedia on Earth sciences.
Literature
- State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2001. - T. 3 Book 1. - 972 p. - ISBN 5-217-02843-2 .