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Reactivity Documentation

Metals, Alkali, Very Active

mixed with

Alkynes, with Acetylenic Hydrogen

Summary

Details

Metals, Alkali, Very Active is a reactive group.
Alkynes, with Acetylenic Hydrogen is a reactive group.

Reactivity Predictions (for each pair of reactive groups)

Metals, Alkali, Very Active mixed with
Alkynes, with Acetylenic Hydrogen

Hazard Predictions

Potassium reacts with acetylene even at cold temperatures to form reactive potassium carbide (K2C2) and possibly hydrogen gas. When this reaction is warmed, it results in a fire (Pascal, P. 1966. Nouveau Traité de Chimie Minérale. Vol. 2, Part 2, p. 31. Masson et Cie.).

Heated lithium reacts incandescently with acetylene, forming explosive lithium carbide (Li2C2) and pyrophoric lithium hydride (Pascal, P. 1966. Nouveau Traité de Chimie Minérale. Vol. 2, Part 1, p. 38, 137. Masson et Cie.).

Liquid potassium ignites and explodes in acetylene (Berthelot, M. 1866. Bull. Soc. Chim. (France) [2] 5:188).

Liquid sodium reacts with acetylene to form reactive sodium carbide (Na2C2) and sodium acetylide (NaC2H) and flammable hydrogen gas (Pascal, P. 1966. Nouveau Traité de Chimie Minérale. Vol. 2, Part 1, p. 224, 867. Masson et Cie.).

Potential Gas Byproducts