Promethium(III) nitrate is an inorganic compound, a salt of promethium and nitric acid with the chemical formula Pm(NO3)3. The compound is radioactive, soluble in water and forms crystalline hydrates.
Synthesis
Reaction of promethium and nitric acid:
- Pm 6 HNO3 → Pm(NO3)3 3 NO2 3 H2O
Physical properties
Promethium(III) nitrate hydrate forms a purple-pink solid.
It forms crystalline hydrates of the composition Pm(NO3)3·6H2O.
Chemical properties
Promethium(III) nitrate thermally decomposes to form promethium(III) oxide.
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