Rhodium trichrome is a binary inorganic compound of chromium and rhodium with the formula Cr 3 Rh, gray crystals.
| Rhodium | |
|---|---|
| Are common | |
| Systematic name | Rhodium |
| Traditional names | Trichromide |
| Chem. formula | Rhcr 3 |
| Rac formula | Cr 3 Rh |
| Physical properties | |
| condition | crystals |
| Molar mass | 258.89 g / mol |
| Density | 8.4 g / cm³ |
| Thermal properties | |
| T. | 1265 ° C |
| Classification | |
| Reg. CAS number | 12190-94-2 |
Getting
- Sintering stoichiometric amounts of pure substances:
Physical Properties
Rhodium-trichrome forms crystals of cubic system , space group P m 3 n , cell parameters a = 0.4660 nm, Z = 2, structure of the trichrome Cr 3 Si [1] [2] silicide type (or tri-gold gold AuCu 3 [3] ).
The compound is formed by the peritectoid reaction at a temperature of 1265 ° C and has a composition of 22 ÷ 23 at.% Rhodium [1] .
Notes
- ↑ 1 2 State diagrams of double metallic systems / Ed. N. P. Lyakishev. - M .: Metallurgy, 1997. - T. 2. - 1024 p. - ISBN 5-217-01569-1 .
- ↑ M. Venkatraman, JP Neumann. The Cr − Rh (Chromium-Rhodium) system // Journal of Phase Equilibria. - 1987. - V. 8 , No. 2 . - pp . 107-109 . - DOI : 10.1007 / BF02873188 .
- ↑ B. Predel. Cr-Rh (Chromium-Rhodium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1994. - V. 5d . - pp . 1-3 . - DOI : 10.1007 / 10086090_1008 .