Silver nitride

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Structural formula
Structure of rhenium (VI) oxide
__ N 3−      __ Ag +
Surname Silver nitride
other names

Knallsilber (ambiguous)

Molecular formula Ag 3 N
Brief description

black solid

External identifiers / databases
CAS number 20737-02-4
Wikidata Q276735
Molar mass 337.61 g mol −1
Physical state



9.0 g cm −3

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Silver nitride is an inorganic chemical compound of silver from the group of nitrides .

Extraction and presentation

Silver nitride can be obtained by reacting silver (I) oxide with ammonia in ethanol .


Silver nitride is a black, flaky solid that is sparingly soluble in cold water. It is soluble with decomposition in dilute mineral acids . An explosive reaction occurs with concentrated acids . Slow decomposition begins at 25 ° C in air, from a temperature of around 165 ° C the decomposition takes place explosively. The connection is very sensitive to mechanical influences, even when it is wet. Silver nitride has a face-centered cubic crystal structure and an enthalpy of formation of +199.1 kJ / mol. The crystal lattice (a = 4.369 Å) is formed by the face-centered cubic arrangement of the silver atoms, in whose octahedral gaps the nitrogen is located.

Individual evidence

  1. a b c d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1003.
  2. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  3. Harry Hahn, Edmund Gilbert: Silver nitride. Metallamides and Metallnitride, Part 19. In: Journal of Inorganic Chemistry. 258, 1949, pp. 77-93, doi : 10.1002 / zaac.19492580109 .