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Home > Chemical Encyclopedia > Silver(I) acetylide

: silver(I) acetylide
CAS No.: 7659-31-6 Formula: C2Ag2 Molecular Weight: 239.75800

Edit: silver(I) acetylide

CAS No.:
7659-31-6
Formula:
C2Ag2
Molecular Weight: 239.75800

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Description

Silver acetylide is an inorganic chemical compound with the formula Ag2C2, a metal acetylide. The compound can be regarded as a salt of the weak acid, acetylene. The salt's anion consists of two carbon atoms linked by a triple bond. The alternate name "silver carbide" is rarely used, although the analogous calcium compound CaC2 is called calcium carbide.
Pure silver acetylide is a heat- and shock-sensitive high explosive with the unusual property that on ignition it does not evolve any gas:
Ag 2C 2 (s) → 2 Ag (s) + 2 C (s)
A common misconception about the "silver acetylide" used in commercial explosives is that it explodes without the evolution of gaseous products and that its chemical formula is Ag 2C 2. In reality, it is a double salt with the silver salt it was produced from, usually silver nitrate. The anion of the parent compound acts as the oxidizer in the decomposition reaction.
The detonation velocity of the mixture silver acetylide: silver nitrate is 3460m/s. That of pure silver acetylide is 4000m/s.

Basic Info

Chemical Name	silver(I) acetylide
Synonyms	Silber(I)-acetylid; silver acetylide;
CAS No.	7659-31-6
Molecular Formula	C2Ag2
Molecular Weight	239.75800
PSA	0.00000
LogP	0.00340