Pentas lead lead is an inorganic binary compound of lead and barium with the formula Ba 3 Pb 5 , crystals.
| Pentas lead lead | |
|---|---|
| Are common | |
| Systematic name | Pentas lead lead |
| Traditional names | Tribariopenta lead |
| Chem. formula | Ba 3 Pb 5 |
| Rat formula | Pb 5 Ba 3 |
| Physical properties | |
| condition | crystals |
| Molar mass | 1447.98 g / mol |
| Density | 8.3 g / cm³ |
| Thermal properties | |
| T. decomp. | 726 ° C |
Getting
- Fusion of stoichiometric amounts of pure substances:
Physical Properties
Penta lead lead forms rhombic syngony crystals, space group C mcm , cell parameters a = 1.1148 nm , b = 0.9049 nm , c = 1.1368 nm , Z = 4 , pentapalladium triplutonium type structure Pu 3 Pd 5 [1] [2 ] ] [3] [4] .
The compound is formed by a peritectic reaction at a temperature of 726 ° C
Notes
- ↑ State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Mechanical Engineering, 1996. - T. 1. - 992 p. - ISBN 5-217-02688-X .
- ↑ B. Predel. Ba-Pb (Barium-Lead) // Landolt-Börnstein - Group IV Physical Chemistry. - 1992. - T. 5b . - S. 1-2 . - DOI : 10.1007 / 10040476_437 .
- ↑ H. Okamoto. Ba-Pb (Barium-Lead) // Journal of Phase Equilibria and Diffusion. - 2008. - T. 29 , No. 3 . - S. 293-293 . - DOI : 10.1007 / s11669-008-9310-3 .
- ↑ Giacomo Bruzzone, Enrico Franceschi. Equilibrium phase diagram and crystal structures of the intermediate phases of the Ba-Pb binary system // Journal of the Less Common Metals. - 1977. - T. 52 , No. 2 . - S. 211-216 . - DOI : 10.1016 / 0022-5088 (77) 90003-0 .