Berkelium(III) oxide

Berkelium(III) oxide is a binary inorganic compound of berkelium and oxygen with the chemical formula Bk
₂O
₃.^[1]

Berkelium(III) oxide

Names
Other names diberkelium trioxide, berkelium sequioxide
Identifiers
CAS Number	12310-58-6
3D model (JSmol)	Interactive image
InChI InChI=1S/2Bk.3O/q2*+3;3*-2 Key: LIPRULCJHNQYDI-UHFFFAOYSA-N
SMILES [Bk+3].[Bk+3].[O-2].[O-2].[O-2]
Properties
Chemical formula	Bk2O3
Molar mass	542 g·mol−1
Appearance	yellow-green solid
Density	g/cm3
Melting point	1,920 °C (3,490 °F; 2,190 K)
Solubility in water	insoluble
Structure
Crystal structure	cubic
Related compounds
Related compounds	Californium(III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

Berkelium(III) oxide can be prepared from berkelium(IV) oxide by reduction with hydrogen:^[2]

2BkO₂ + H₂ → Bk₂O₃ + H₂O

Physical properties

The compound forms a yellow-green solid with a melting point of 1920 °C. It forms a body-centered cubic crystal lattice with a = 1088.0 ± 0.5 pm.^[3][4]

Insoluble in water.^[5]