Chemistry:Silver selenite
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Silver(I) selenite
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3D model (JSmol)
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| Properties | |
| Ag2SeO3 | |
| Molar mass | 342.69 g/mol |
| Appearance | crystalline needles |
| Density | 5.930 g/cm3 |
| Melting point | 530 °C (986 °F; 803 K) |
| Boiling point | decomposes above 550 °C (1,022 °F; 823 K) |
| slightly soluble | |
| Solubility | soluble in acids |
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| Safety data sheet | MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is   ?)
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Silver selenite is an inorganic compound of formula Ag2SeO3.
Production
Silver selenite is formed during the recovery of selenium from copper anode slimes when they are subjected to oxidative roasting, causing some silver selenide to be converted to the selenite. It can also be prepared by a precipitation reaction between silver nitrate and sodium selenite:[2]
Another method is the reaction between selenium and silver nitrate:[3]
- 3 Se + 6 AgNO3 + 3 H2O → 2 Ag2Se + Ag2SeO3 + 6 HNO3
References
- ↑ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–83, ISBN 0-8493-0594-2
- ↑ Okkonen, Pertti; Hiltunen, Lassi; Koskenlinna, Markus; Niinistö, Lauri; Aksnes, Dagfinn W.; Balzarini, Jan; Fransson, Bengt; Ragnarsson, Ulf et al. (1994). "Crystal Structure and Thermal Stability of Silver Selenite." (in en). Acta Chemica Scandinavica 48: 857–860. doi:10.3891/acta.chem.scand.48-0857. ISSN 0904-213X.
- ↑ Doane, Daryl Ann; Heller, Adam (1982). Proceedings of the Symposium on Inorganic Resist Systems. Electrochemical Society. pp. 159. https://books.google.com/books?id=FPhTAAAAMAAJ&pg=PA159.
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