Polonium(IV) sulfate

Polonium(IV) sulfate is an inorganic compound, a salt of polonium and the sulfate anion with the chemical formula of Po(SO₄)₂. As anhydrous, it forms dark purple crystalline solid, and as a hydrate, it forms colourless or white crystals, and is soluble in water. It can be obtained by the reaction of polonium tetrachloride (or hydrated polonium dioxide)^[1] and sulfuric acid.^[2] Polonium(IV) sulfate can be reduced to PoSO₄^[3] by hydroxylamine in acidic solutions; it decomposes to polonium dioxide at 550 °C. It is radioactive and produces gases as it decays.^[2]

Polonium(IV) sulfate

Identifiers
CAS Number	66256-57-3 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2H2O4S.Po/c2*1-5(2,3)4;/h2*(H2,1,2,3,4);/q;;+4/p-4 Key: MIJPRCZICLLYHP-UHFFFAOYSA-J
SMILES [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Po+4]
Properties
Chemical formula	Po(SO4)2
Molar mass	401 g·mol−1 (anhydrous)
Appearance	dark purple crystalline solid (anhydrous)[1] white or colourless crystals (hydrate)[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references