Protactinyl nitrate

Protactinyl nitrate
Names
Other names
  • Protactinium(V) oxynitrate
Identifiers
3D model (JSmol)
  • InChI=1S/3NO3.O.Pa/c3*2-1(3)4;;/q3*-1;;+3
    Key: HPGAUFDFQPEWQU-UHFFFAOYSA-N
  • [Pa](O[N+]([O-])=O)(O[N+]([O-])=O)(O[N+]([O-])=O)=O
Properties
PaO(NO3)3
Molar mass 433.05 g/mol
Appearance White solid[1]
Melting point 400 °C (752 °F; 673 K) (decomposition)
Hydrolysis[1]
Solubility Soluble in fuming nitric acid[1]
Related compounds
Other cations
 Uranyl nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Protactinyl nitrate, protactinium(V) oxynitrate, or erroneously known as protactinium nitrate, is a radioactive chemical compound with the formula PaO(NO3)3·xH2O (1.5 ≤ x ≤ 4). It is a white solid that readily hydrolyzes to protactinium(V) oxide in moist air. This compound is a common commercial source of protactinium.[2]

  1. ^ a b c D. Brown; P. J. Jones (1966). "Quinquevalent protactinium, niobium, and tantalum nitrates and nitrato-complexes". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 733–737. doi:10.1039/J19660000733.
  2. ^ R. Grossmann; H.J. Maier; J. Szerypo; H.U. Friebel (2008). "Preparation of 231Pa targets". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 590 (1–3): 122–125. doi:10.1016/j.nima.2008.02.084.