ChemInform Abstract: Crystal Structure and Thermal Stability of Silver Selenite.
Abstract
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ChemInform Abstract
Ag2SeO3 forms during recovery of Se from Cu anode slime by oxidative roasting of slime. Needle-shaped crystals, obtained by hydrothermal reaction of a 1:1 AgNO3-H2SeO3 aqueous solution at 220 °C, adopt the monoclinic space group P21/c with Z = 4. The structure consists of SeO2- 3 tetrahedra and AgO6 octahedra. As shown by simultaneous TG/DTG/DTA measurements, the compound melts at 540 . degree.C with onset of decomposition to Ag(s), SeO2 and O2 and melting of Ag at 950 °C.
