Iron arsenides are binary inorganic compounds of the metal of iron and arsenic .
Getting
- Prolonged heating of a powdery mixture of iron and arsenic.
| Formula | Like weight | Density g / cm³ | Pace. melting ° C | The properties |
|---|---|---|---|---|
| Fe 2 As | 186.61 | 7.8 | tetragonal syngony , P 4 / nmm , a = 0.3627 nm, c = 0.5973 nm, Z = 2 | |
| Fe 3 As 2 | 317.38 | |||
| Feas | 130.77 | 7.83 | 1020 | rhombic syngony , P nam , a = 0.5428 nm, b = 0.6016 nm, c = 0.3366 nm, Z = 4 |
| Fe 3 As 4 | 467.22 | |||
| FeAs 2 | 205.69 | 7.4 | 990 | rhombic syngony, P nnm , a = 0.520 nm, b = 0.592 nm, c = 0.286 nm, Z = 2 |
Literature
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1972. - T. 2. - 871 p.