Platinachrome - a binary inorganic compound of platinum and chromium with the formula PtCr, crystals.
| Platinum | |
|---|---|
| Are common | |
| Systematic name | Platinum |
| Traditional names | Chrome Platinum |
| Chem. formula | Ptcr |
| Rat formula | CrPt |
| Physical properties | |
| condition | crystals |
| Molar mass | 247.07 g / mol |
| Density | 14.7 g / cm³ |
| Thermal properties | |
| T. decomp. | ≈800 ° C |
| Enthalpy of Education | -29 [1] kJ / mol |
| Classification | |
| Reg. CAS number | 50811-45-5 |
Getting
- Fusion of stoichiometric amounts of pure substances:
Physical Properties
Platinachrome forms tetragonal crystals, space group P 4 / mmm , cell parameters a = 0.3822 nm, c = 0.3811 nm, Z = 2, AuCu copper - gold type structure [2] [3] [4] [5] [ 6] .
The compound is formed by a solid state reaction at a temperature of ≈800 ° C [2] .
Notes
- ↑ Johannes Preußner, Sara Prins, Rainer Völkl, Zi-Kui Liu, Uwe Glatzel. Determination of phases in the system chromium – platinum (Cr – Pt) and thermodynamic calculations // Materials Science and Engineering A. - 2009. - T. A 510–511 . - S. 322–327 . Archived January 13, 2015.
- ↑ 1 2 State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Metallurgy, 1997 .-- T. 2 .-- 1024 p. - ISBN 5-217-01569-1 .
- ↑ P. Franke, D. Neuschütz. Cr-Pt // Landolt-Börnstein - Group IV Physical Chemistry. - 2004 .-- T. 19B2 . - S. 1-5 . - DOI : 10.1007 / 10757405_89 .
- ↑ H. Okamoto. Cr-Pt (Chromium-Platinum) // Journal of Phase Equilibria and Diffusion. - 2009. - T. 30 , No. 3 . - S. 295-296 . - DOI : 10.1007 / s11669-009-9507-0 .
- ↑ B. Predel. [Landolt-Börnstein - Group IV Physical Chemistry Cr-Pt (Chromium-Platinum)]. - 1994 .-- T. 5d . - S. 1-4 . - DOI : 10.1007 / 10086090_1003 .
- ↑ M. Venkatraman, JP Neumann. The Cr-Pt (Chromium-Platinum) system // Bulletin of Alloy Phase Diagrams. - 1990. - T. 11 , No. 1 . - S. 16-21 . - DOI : 10.1007 / BF02841579 .