Sodium antimonide
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Other names
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| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.835 |
| EC Number |
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CompTox Dashboard (EPA) |
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| Properties | |
| Na3Sb | |
| Molar mass | 190.729 g·mol−1 |
| Appearance | bluish-black crystals |
| Density | 2.6 g/cm3 |
| Melting point | 856 °C (1,573 °F; 1,129 K) |
| reacts with water | |
| Related compounds | |
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium antimonide is a binary inorganic compound with the molecular formula Na3Sb.[1][2]
The compound is often synthesized by fusing the elements together[3] at 900 °C in an inert atmosphere (e.g. argon), resulting in a crystalline phase that facilitates Li or Na-ion storage.
- 3Na + Sb → Na3Sb
Physical properties
The compound forms bluish-black cystals of the hexagonal crystal system, space group P63/mmc, cell parameters a = 0.532 nm, c = 0.947 nm, Z = 2.[4][5]
At high pressures (3 GPa), the transition to the cubic system occurs.