How is acetic acid prepared from acetylene? - Vidyadip

Question

How is acetic acid prepared from acetylene?

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Answer

Acetylene is first converted to acetaldehyde by passing through $40 \%$ $H _2 SO _4$ at $60^{\circ} C$ in the presence of $1 \% HgSO _4$.
The acetaldehyde is then oxidised to acetic acid in the presence of catalyst manganous acetate at $70^{\circ} C$.
$
\begin{array}{c}
C _2 H _2+ H _2 O \xrightarrow[ HgSO _4]{ H _2 SO _4(\text { dil })} CH _3 CHO \\
CH _3 CHO + O _2 \xrightarrow[\text { Catalyst }]{\Delta} 2 CH _3 COOH
\end{array}
$

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