Silver acetylide

Silver acetylide
IUPAC name	Disilver acetylide
Identifiers
CAS number	7659-31-6
SMILES	[C-]#[C-].[Ag+].[Ag+]
Properties
Molecular formula	C2Ag2
Molar mass	239.76 g mol−1
Appearance	white solid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references

Silver acetylide is an inorganic chemical compound with the formula Ag₂C₂, a metal acetylide. The name derived from the way it is synthesized, the alternative silver carbide is not used in literature, although the substance is similar to calcium carbide . It is a heat and shock sensitive high explosive with the unusual property that on ignition it does not evolve any gas:

Ag₂C_2(s) → 2 Ag_(s) + 2 C_(s)

The detonation velocity of Silver acetylide is 4000 m/s.

[] Synthesis

Silver acetylide can be produced by passing acetylene gas through a solution of silver nitrate.^[1]

The equation is as follows:

2 AgNO_3(aq) + C₂H_2(g) → Ag₂C_2(s) + 2 HNO_3(aq)

The reaction product is a greyish to white precipitate. This is the same synthesis from Berthelot in which he first found silver acetylide in 1866.^[2]

Silver acetylide can be formed on the surface of silver or high-silver alloys, eg. in pipes used for transport of acetylene, if silver brazing was used in their joints.

[] Toxicity

As with all silver salts, silver acetylide is toxic. Ingesting as little as 2 grams can be fatal.^{[citation needed]}

[] References

Silver acetylide
IUPAC name	Disilver acetylide
Identifiers
CAS number	7659-31-6
SMILES	[C-]#[C-].[Ag+].[Ag+]
Properties
Molecular formula	C2Ag2
Molar mass	239.76 g mol−1
Appearance	white solid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references

Silver acetylide is an inorganic chemical compound with the formula Ag₂C₂, a metal acetylide. The name derived from the way it is synthesized, the alternative silver carbide is not used in literature, although the substance is similar to calcium carbide . It is a heat and shock sensitive high explosive with the unusual property that on ignition it does not evolve any gas:

Ag₂C_2(s) → 2 Ag_(s) + 2 C_(s)

The detonation velocity of Silver acetylide is 4000 m/s.

[] Synthesis

Silver acetylide can be produced by passing acetylene gas through a solution of silver nitrate.^[1]

The equation is as follows:

2 AgNO_3(aq) + C₂H_2(g) → Ag₂C_2(s) + 2 HNO_3(aq)

The reaction product is a greyish to white precipitate. This is the same synthesis from Berthelot in which he first found silver acetylide in 1866.^[2]

Silver acetylide can be formed on the surface of silver or high-silver alloys, eg. in pipes used for transport of acetylene, if silver brazing was used in their joints.

[] Toxicity

As with all silver salts, silver acetylide is toxic. Ingesting as little as 2 grams can be fatal.^{[citation needed]}

[] References