Silver cyanate

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Silver cyanate
Systematic name

Silver(I) cyanate

Identifiers
CAS number 3315-16-0 YesY
PubChem 76827
ChemSpider 69282
Jmol-3D images {{#if:[Ag+].[O-]C#N|Image 1
Properties
Molecular formula AgOCN
Molar mass 149.885 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Silver cyanate is a chemical compound and the cyanate salt of silver.

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

{\mathrm {AgNO_{3}+KOCN\longrightarrow AgOCN\downarrow +\ KNO_{3}}}
{\mathrm {AgNO_{3}+H_{2}N{\text{-}}C(O){\text{-}}NH_{2}\longrightarrow }} {\mathrm {AgOCN\downarrow +\ NH_{4}NO_{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_{2}O\longrightarrow }}
{\mathrm {AgNO_{3}+CO_{2}\uparrow +\ NH_{4}NO_{3}}}

See also

References

  1. ↑ Willy Kühne (1868) (in German), [Seite 470, p. 470, at Google Books Lehrbuch der physiologischen Chemie], Seite 470, p. 470, at Google Books
  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.
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