Abstract
The addition of barium to liquid sodium modifies the reactions of the liquid metal with simple hydrocarbons. The reactions of 4·6 atoms % solutions of barium in liquid sodium with acetylene and ethylene have been studied at 100, 150, and 200 °C and at starting pressures up to 18 cmHg. Ethylene reacts with this solution to give a solid acetylide and hydrogen, but hydrogenation to ethane also occurs to a small extent. Reaction of acetylene is much slower (by a factor of about 50) than with liquid sodium alone. Breaks in pressure–time curves are interpreted in terms of adsorption and reaction of acetylene, ethylene, and hydrogen at the metal surface.
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