Silver acetylide
| Names | |
|---|---|
| Preferred IUPAC name Silver acetylide | |
| Systematic IUPAC name Silver(I) ethynediide | |
| Other names 
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| Identifiers | |
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| 3D model (JSmol) | 
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| ChemSpider | |
| PubChem CID | 
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| CompTox Dashboard (EPA) | |
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| 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) | |
| Flash point | 77 °C (171 °F; 350 K) | 
| Thermochemistry | |
| Std enthalpy of formation (ΔfH⦵298) | 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). 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.