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Hazard Predictions

• Explosive: Reaction products may be explosive or sensitive to shock or friction

When acetylene comes into contact with ammoniacal or alkaline solutions of copper (II) salts, explosive copper acetylides can be formed. Silver and mercury salts will also give explosive acetylides in contact with acetylene (Bretherick, L. 1996. Bretherick's Handbook of Reactive Chemical Hazards. Vol. 2, p 191-192. Fifth Ed. Urben, P.G., Ed. Butterworth-Heinemann, Boston, MA).

Mixtures of acetylenic compounds with other weak bases in the presence of metal salts may also result in the formation of explosive metal acetylides. Caution should be used before proceeding. Further research of comparable examples in the literature or very small scale, carefully controlled experiments may be needed to fully assess compatibility.