Silver acetylide

Silver acetylide
Names
Preferred IUPAC name
Silver acetylide
Systematic IUPAC name
Silver(I) ethynediide
Other names
  • Silver percarbide
  • Silver carbide
  • Silver dicarbide
  • Argentous acetylide
  • Argentous ethynediide
  • Argentous percarbide
  • Argentous carbide
  • Argentous dicarbide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C2.2Ag/c1-2;;/q-2;2*+1
    Key: FIDGMLJJLFFOEI-UHFFFAOYSA-N
  • ethynide: InChI=1S/C2H.Ag/c1-2;/h1H;/q-1;+1
    Key: SLERPCVQDVNSAK-UHFFFAOYSA-N
  • [Ag+].[Ag+].[C-]#[C-]
  • ethynide: [Ag+].[C-]#C
Properties
Ag2C2
Molar mass 239.758 g·mol−1
Appearance gray or white solid
Density 4.47 g/cm3
Melting point 120 °C (248 °F; 393 K)
Boiling point decomposes
insoluble
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
highly sensitive primary explosive
NFPA 704 (fire diamond)
3
3
4
Flash point 77 °C (171 °F; 350 K)
Thermochemistry
357.6±5.0 kJ/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

Silver acetylide is an inorganic chemical compound with the formula Ag2C2, a metal acetylide. The compound can be regarded as a silver salt of the weak acid, acetylene. The salt's anion consists of two carbon atoms linked by a triple bond, thus, its structure is [Ag+]2[C≡C]. The alternate name "silver carbide" is rarely used, although the analogous calcium compound CaC2 is called calcium carbide. Silver acetylide is a primary explosive.