Neptunium oxide (V) is a binary inorganic compound of neptunium and oxygen with the formula Np 2 O 5 , dark brown crystals, does not dissolve in water.
| Neptunium oxide | |
|---|---|
| General | |
| Systematic name | Neptunium oxide (V) |
| Traditional names | Neptunium Oxide |
| Chem. formula | Np 2 O 5 |
| Physical properties | |
| condition | dark brown crystals |
| Molar mass | 554.00 g / mol |
| Density | 8.1 g / cm³ |
| Classification | |
| Reg. CAS number | 121433-01-0 |
Content
- 1 Receiving
- 2 Physical properties
- 3 Notes
- 4 Literature
- 5 Links
Getting
- A solution of neptunium perchlorate (V) in perchloric acid is poured onto molten lithium perchlorate . Then, ozone is passed through the melt. The reaction by-products are washed with water.
- Decomposition of neptunium (VI) oxide hydrate when heated:
Physical Properties
Neptunium (V) oxide forms dark brown crystals of monoclinic syngony , space group P 2 1 / a , cell parameters a = 0.4183 nm, b = 0.6584 nm, c = 0.4086 nm, β = 90.32 ° , Z = 1.
There are data on other cell parameters: space group P 2 1 / a , cell parameters a = 0.8168 nm, b = 0.6584 nm, c = 0.9313 nm, β = 116.09 °, Z = 4 [1 ] .
Not soluble in water.
Notes
- ↑ Tori Z. Forbes, Peter C. Burns, S. Skanthakumar, and L. Soderholm ,. Synthesis, Structure, and Magnetism of Np 2 O 5 // Journal of the American Chemical Society. - 2007. - T. 129 , No. 10 . - S. 2760–2761 . - DOI : 10.1021 / ja069250r .
Literature
- Inorganic Synthesis Guide: 6 Vol. / Ed. Brower G. - M .: Mir, 1985 .-- T. 4 .-- 447 p.