Silver selenite
Silver selenite is an inorganic compound of formula Ag2SeO3.
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Silver(I) selenite | |
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| ECHA InfoCard | 100.029.133 |
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| Properties | |
Chemical formula |
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) |
Solubility in water |
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). | |
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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 Ag2O + Ag2SO3 + 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; Francis, George W. (1994). "Crystal Structure and Thermal Stability of Silver Selenite". 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. p. 159.
External links
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