查看“︁氰酸银”︁的源代码

{{NoteTA|G1=Chemistry}}
{{Chembox
| ImageFileR1 = Cyanate-ion-2D.png
| ImageSizeR1 = 167px
| ImageFileL1 = Ag+.svg
| ImageSizeL1 = 47px
| SystematicName = Silver(I) cyanate
| OtherNames = 
| Section1 = {{Chembox Identifiers
|  CASNo = 3315-16-0
|   CASNo_Ref = {{cascite|correct|}}
|  PubChem = 76827
|  ChemSpiderID = 69282
|  SMILES = [Ag+].[O-]C#N
|  InChI = 1/CHNO.Ag/c2-1-3;/h3H;/q;+1/p-1
|  InChIKey = DWBPIWPCOSHWCK-REWHXWOFAQ
|  StdInChI = 1S/CHNO.Ag/c2-1-3;/h3H;/q;+1/p-1
|  StdInChIKey = DWBPIWPCOSHWCK-UHFFFAOYSA-M
  }}
| Section2 = {{Chembox Properties
|  Formula = AgOCN
|  MolarMass = 149.885 g/mol
|  Appearance = 
|  Density = 
|  MeltingPt = 
|  BoilingPt = 
|  Solubility =
  }}
| Section7 = {{Chembox Hazards
|  Reference = <ref name="Sigma">{{Sigma-Aldrich|ALDRICH|244694|Datum=13. Dezember 2011|Name=Silver cyanate, 99 %}}</ref>
|  GHSPictograms = {{Chembox GHSPictograms|07}}
|  GHSSignalWord = 
|  HPhrases = {{H-phrases|302|312|332}}
|  PPhrases = {{P-phrases|280}}
|  EUHazardSymbol = {{Chembox EUHazardSymbol|Xn}}
|  RPhrases = {{R20/21/22}}
|  SPhrases = {{S24/25}}
|  FlashPt = 
|  pKa = 
|  pKb = 
|  EUClass =
|  EUIndex = 
|  MainHazards = 
|  NFPA-H = 
|  NFPA-F = 
|  NFPA-R = 
|  NFPA-O = 
|  RSPhrases = 
|  Autoignition = 
|  ExploLimits = 
|  PEL = 
  }}
}}

'''氰酸银'''是一种[[化合物]]，[[氰酸]]的[[银]][[盐 (化学)|盐]]。它可以通过[[氰酸钾]]或[[尿素]]与[[硝酸银]]的反应来制备。<ref name="buch">{{Literatur | Autor = Willy Kühne | Titel = Lehrbuch der physiologischen Chemie | Verlag = | ISBN = | Jahr = 1868 | Online = {{Google Buch | BuchID = q8U9AAAAYAAJ | Linktext = Seite 470 | Seite = 470 }} }}</ref>

:<math>\mathrm{AgNO_3 + KOCN \longrightarrow AgOCN \downarrow +\ KNO_3}</math>
 
:<math>\mathrm{AgNO_3 + H_2N\text{-}C(O)\text{-}NH_2 \longrightarrow}</math> <math>\mathrm{AgOCN \downarrow +\ NH_4NO_3}</math>

氰酸银是一种米黄色到灰色的粉末。[[结晶]]为[[单斜晶系|单斜]]，[[空间群]]''P''2<sub>1</sub>/''m''，其中a = 547.3 [[皮米|pm]]，b = 637.2 pm，c = 341.6 pm，β = 91°。<ref>[http://scripts.iucr.org/cgi-bin/paper?a04540 D. Britton, J. D. Dunitz: ''The crystal structure of silver cyanate''] {{Wayback|url=http://scripts.iucr.org/cgi-bin/paper?a04540 |date=20160102005951 }}, Acta Cryst. (1965). 18, 424-428, {{DOI|10.1107/S0365110X65000944}}</ref>

氰酸银与[[硝酸]]反应生成[[二氧化碳]]和[[硝酸铵]]。<ref name="Milbauer">J. Milbauer: ''Bestimmung und Trennung der Cyanate, Cyanide, Rhodanide und Sulfide'' in [[Fresenius' Journal of Analytical Chemistry]] 42 (1903) 77-95, {{DOI|10.1007/BF01302741}}.</ref> 

:<math>\mathrm{AgOCN + 2HNO_3 + H_2O \longrightarrow}</math> 
:<math>\mathrm{AgNO_3 + CO_2 \uparrow +\ NH_4NO_3}</math>

== 参见 ==
* [[尤斯图斯·冯·李比希]]
* [[弗里德里希·维勒]]
* [[雷酸银]]
* [[同分异构]]

== 参考 ==
{{Reflist}}
{{银化合物}}

[[Category:银化合物]]
[[Category:氰酸盐]]