Sodium polonide is a binary inorganic compound, polonium and sodium with the formula Na 2 Po, gray crystals.
| Sodium polonide | |
|---|---|
| Are common | |
| Systematic name | Sodium polonide |
| Traditional names | Disodium polonium; polonium disodium |
| Chem. formula | Na 2 Po |
| Rat formula | PoNa 2 |
| Physical properties | |
| condition | gray crystals |
| Molar mass | 254.98 g / mol |
| Density | 4.08 [1] [2] |
| Security | |
| Toxicity |   |
| NFPA 704 |  0 four 0 |
Getting
- Fusion of stoichiometric amounts of pure substances [3] :
- The reaction of polonium with molten caustic soda :
Physical Properties
Sodium polonide forms gray [3] crystals of cubic syngony , space group F m 3 m , cell parameters a = 0.7473 nm, Z = 4, structure like calcium fluoride [1] [4] [5] .
Notes
- ↑ 1 2 Chemical Encyclopedia / Editorial: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1995. - T. 4. - 639 p. - ISBN 5-82270-092-4 .
- ↑ Chemist's Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- ↑ 1 2 Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1971. - T. 1. - 561 p.
- ↑ State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2001. - T. 3 Book 1. - 972 p. - ISBN 5-217-02843-2 .
- ↑ B. Predel. Na-Po (Sodium-Polonium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1997. - T. 5H . - S. 1 . - DOI : 10.1007 / 10522884_2156 .