Silver cyanate

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Silver cyanate
Names
Systematic IUPAC name
Silver(I) cyanate
Identifiers
3315-16-0 YesY
ChemSpider 69282
Jmol-3D images Image
PubChem 76827
Properties
AgOCN
Molar mass 149.885 g/mol
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Silver cyanate is a chemical compound; it is the cyanate salt of silver.

It can be prepared by the reaction of potassium cyanate or urea with silver nitrate.[1]

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

Silver cyanate is a beige to gray powder. It crystallises in the monoclinic crystal system in space group P21/m with parameters a = 547.3 pm, b = 637.2 pm, c = 341.6 pm und β = 91°.[2]

With nitric acid, silver cyanate reacts to form carbon dioxide and ammonium nitrate.[3]

\mathrm{AgOCN + 2HNO_3 + H_2O \longrightarrow}
\mathrm{AgNO_3 + CO_2 \uparrow +\ NH_4NO_3}

See also[edit]

References[edit]

  1. ^ Willy Kühne (1868) (in German), Lehrbuch der physiologischen Chemie, //books.google.com/books?id=q8U9AAAAYAAJ&pg=PA470 
  2. ^ D. Britton, J. D. Dunitz: The crystal structure of silver cyanate, Acta Cryst. (1965). 18, 424-428, doi:10.1107/S0365110X65000944
  3. ^ 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.