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Silver selenite

Silver selenite[1]
Names
Other names
Silver(I) selenite
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.133 Edit this at Wikidata
EC Number
  • 232-046-4
UNII
  • InChI=1S/2Ag.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2 checkY
    Key: WQIJNCUKAOHNPM-UHFFFAOYSA-L checkY
  • InChI=1/2Ag.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
    Key: WQIJNCUKAOHNPM-NUQVWONBAA
  • [Ag+].[Ag+].[O-][Se]([O-])=O
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
Hazards
Safety data sheet (SDS) MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

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

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–83, ISBN 0-8493-0594-2
  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.
  3. ^ Doane, Daryl Ann; Heller, Adam (1982). Proceedings of the Symposium on Inorganic Resist Systems. Electrochemical Society. p. 159.
Quelle: http://en.wikipedia.org/wiki/Silver_selenite