Question
State the preparation, properties and uses of methanol.
✓
Answer
$\rightarrow$ Methanol, $CH_3OH,$ also known as 'wood spirit', was produced by destructive distillation of wood. Today, most of the methanol is produced by catalytic hydrogenation of carbon monoxide at high pressure and temperature and in the presence of $ZnO - Cr_2O_3$ catalyst.
$CO +2 H _2 \xrightarrow[\substack{200-300\ atm \ 573-673 k }]{ ZnO - Cr _2 O _3} CH _3 OH$
$\rightarrow$ Methanol is a colourless liquid and boils at $337 K.$ It is highly poisonous in nature. Ingestion of even small quantities of methanol can cause blindness and large quantities causes even death. Methanol is used as a solvent in paints, varnishes and chiefly for making formaldehyde.
$CO +2 H _2 \xrightarrow[\substack{200-300\ atm \ 573-673 k }]{ ZnO - Cr _2 O _3} CH _3 OH$
$\rightarrow$ Methanol is a colourless liquid and boils at $337 K.$ It is highly poisonous in nature. Ingestion of even small quantities of methanol can cause blindness and large quantities causes even death. Methanol is used as a solvent in paints, varnishes and chiefly for making formaldehyde.
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