Silver selenite
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 464391425
{{Citation
| last = Lide
| first = David R.
| author-link =
| year = 1998
| title = Handbook of Chemistry and Physics
| edition = 87
| volume =
| series =
| location = Boca Raton, FL
| publisher = CRC Press
| id =
| isbn = 0-8493-0594-2
| doi =
| oclc =
| pages = 4–83
| url =
}}
| ImageFile =
| ImageSize =
| ImageName =
| OtherNames = Silver(I) selenite
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|changed|CAS}}
| CASNo = 7784-05-6
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 14668373
| PubChem = 15520661
| InChI = 1/2Ag.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
| InChIKey = WQIJNCUKAOHNPM-NUQVWONBAA
| SMILES = [Ag+].[Ag+].[O-][Se]([O-])=O
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/2Ag.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = WQIJNCUKAOHNPM-UHFFFAOYSA-L
| UNII_Ref = {{fdacite|changed|FDA}}
| UNII = 2QL3KFA70W
| EINECS = 232-046-4
}}
|Section2={{Chembox Properties
| Formula = Ag2SeO3
| MolarMass = 342.69 g/mol
| Appearance = crystalline needles
| Density = 5.930 g/cm3
| Solubility = slightly soluble
| SolubleOther = soluble in acids
| MeltingPtC = 530
| BoilingPt= decomposes above
| BoilingPtC = 550
}}
|Section4={{Chembox Thermochemistry
| DeltaHf =
}}
|Section7={{Chembox Hazards
| ExternalSDS = {{usurped|1=[https://web.archive.org/web/20110723041603/http://www.chemexper.net/specification_d/chemicals/supplier/cas/Silver%20selenite.asp MSDS]}}
| NFPA-H =
| NFPA-R =
| NFPA-F =
}}
}}
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:{{Cite journal|last1=Okkonen|first1=Pertti|last2=Hiltunen|first2=Lassi|last3=Koskenlinna|first3=Markus|last4=Niinistö|first4=Lauri|last5=Aksnes|first5=Dagfinn W.|last6=Balzarini|first6=Jan|last7=Fransson|first7=Bengt|last8=Ragnarsson|first8=Ulf|last9=Francis|first9=George W.|date=1994|title=Crystal Structure and Thermal Stability of Silver Selenite.|journal=Acta Chemica Scandinavica|language=en|volume=48|pages=857–860|doi=10.3891/acta.chem.scand.48-0857|issn=0904-213X|doi-access=free}}
Another method is the reaction between selenium and silver nitrate:{{Cite book|last1=Doane|first1=Daryl Ann|url=https://books.google.com/books?id=FPhTAAAAMAAJ&pg=PA159|title=Proceedings of the Symposium on Inorganic Resist Systems|last2=Heller|first2=Adam|publisher=Electrochemical Society|year=1982|pages=159}}
:3 Se + 6 AgNO3 + 3 H2O → 2 Ag2Se + Ag2SeO3 + 6 HNO3
References
{{reflist}}
External links
- {{usurped|1=[https://web.archive.org/web/20120220091649/http://www.chemexper.net/specification_d/chemicals/supplier/cas/Silver%20selenite.asp External MSDS]}}
{{Silver compounds}}
{{Selenites}}
{{inorganic-compound-stub}}