What are the methods for separating acetylene, methylacetylene, and methylene?
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How to remove propyne and propadiene from acetylene gas?
The boiling points differ significantly, making separation easy using distillation.
Methylenes are particularly dangerous at low temperatures and high concentrations; the investment required is high and the costs are substantial. Since the concentrations of methylacetylene and methylenes are both only a few hundredths of a percent, this approach was not adopted