Sodium polonide is a radioactive chemical compound with the formula Na₂ Po. This salt is a polonide, a set of very chemically stable compounds of polonium.. Due to the difference in electronegativity (ΔEN) between sodium and polonium (≈ 1.1 under the Pauling system) and the slight non-metallic character of polonium, it is intermediate between intermetallic phases and ionic compounds.

Production

This salt may be produced from the reaction between aqueous hydrogen polonide and sodium metal: :H₂Po + 2 Na → Na₂Po + H₂ This method of synthesis is hampered by the chemical instability of hydrogen polonide. Sodium polonide may also be produced by heating sodium and polonium together at 300–400 °C.

Crystal structure

Like lithium polonide and potassium polonide, sodium polonide has the antifluorite structure.

References

{{inorganic-chemistry-stub Sodium compounds Polonides Fluorite crystal structure