Dialuminium neptunium is a binary inorganic compound of neptunium and aluminum with the formula Al 2 Np, crystals.
| Dialium Neptunium | |
|---|---|
| Are common | |
| Systematic name | Dialium Neptunium |
| Traditional names | Neptunium Dialyuminides |
| Chem. formula | Al 2 Np |
| Rat formula | Npal 2 |
| Physical properties | |
| condition | crystals |
| Molar mass | 290.96 g / mol |
| Density | 8.1 g / cm³ |
| Thermal properties | |
| T. melt. | 1590 ° C |
| Enthalpy of Education | -110 [1] kJ / mol |
| Classification | |
| Reg. CAS number | 12296-93-4 |
Getting
- Fusion of stoichiometric amounts of pure substances:
Physical Properties
Dialuminium neptunium forms crystals of cubic syngony , space group F d3m , cell parameters a = 0.7785 nm, Z = 8, structure like magnesium-copper Cu 2 Mg [2] .
The compound melts congruently at 1590 ° C [3] .
At a temperature of 56 K, a ferromagnetic transition occurs in the crystal [4] .
Notes
- ↑ D. Sedmidubský, RJM Konings, P. Souček. Ab-initio calculations and phase diagram assessments of An – Al systems (An = U, Np, Pu) // Journal of Nuclear Materials. - 2010. - T. 397 , No. 1-3 . - S. 1–7 . - DOI : 10.1016 / j.jnucmat.2009.11.0.023 .
- ↑ State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Mechanical Engineering, 1996. - T. 1. - 992 p. - ISBN 5-217-02688-X .
- ↑ H. Okamoto. Al-Pu (Aluminum-Plutonium) // Journal of Phase Equilibria and Diffusion. - 2012. - T. 33 , No. 6 . - S. 488 . - DOI : 10.1007 / s11669-012-0088-y .
- ↑ K. Aggarwal, L. Asch, S. Fredo, J. Gal, FN Gygax, B. Hitti, GM Kalvius, A. Kratzer, FJ Litterst, KH Münch. μSR on NpAl 2 // Hyperfine Interactions. - 1991. - T. 64 , No. 1-4 . - S. 401-404 . - DOI : 10.1007 / BF02396169 .