Sodium polonide
Crystal structure | |||||||
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__ Na + __ Po 2− | |||||||
Crystal system | |||||||
Space group |
Fm 3 m (No. 225) |
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Lattice parameters |
a = 7.473 ± 0.004 Å |
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General | |||||||
Surname | Sodium polonide | ||||||
other names |
Disodium polonide |
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Ratio formula | Well 2 Po | ||||||
Brief description |
gray solid |
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External identifiers / databases | |||||||
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properties | |||||||
Molar mass | 254.96 g mol −1 | ||||||
Physical state |
firmly |
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density |
4.08 g cm −3 |
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Hazard and safety information | |||||||
![]() Radioactive |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Sodium polonide , Na 2 Po is a chemical compound from the group of polonides with sodium .
Extraction and presentation
The reaction of polonium and sodium hydroxide results in sodium polonide , among other things.
Another possibility would be to use the same reaction, only instead of the polonium lead polonide .
properties
Just like sodium telluride, the salt crystallizes in the anti-calcium fluoride type , a cubic crystal system with the space group Fm 3 m (space group no. 225) . The lattice parameter is a = 7.473 ± 0.004 Å .
Individual evidence
- ^ HJ Emeléus, AG Sharpe: Advances in Inorganic Chemistry and Radiochemistry . tape 4 . Academic Press, 1962, ISBN 0-08-057853-5 , pp. 209-210 .
- ^ A b Harvey V. Moyer: Chemical Properties of Polonium . 1956, p. 96 , doi : 10.2172 / 4367751 .
- ↑ The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.
- ↑ a b Christopher Lee Larson: Polonium extraction techniques for a lead-bismuth cooled fast reactor . 1978, p. 7 ( wmsym.org [PDF]).