# Explain one property of ethanol

Ethanol is a compound of carbon, hydrogen and oxygen elements. Ethanol can be found naturally as a plant fermentation by-product and it can also be produced through the hydration of ethylene. Ethanol formula can be represented as C2H5OH or CH3CH2OH.

### Properties of ethanol

Listed below are properties of ethanol

Physical properties

• At room temperature Ethanol is always a liquid.
• It has a melting point of 156K and a boiling point of 351 K.
• Ethanol is soluble in water.

Chemical properties

• Reaction with sodium:

When ethanol reacts with sodium it produces hydrogen gas and sodium ethoxide as the ultimate product.

$$\begin{array}{l}2Na~ +~ 2CH_3CH_2OH~ \rightarrow ~2CH_3CH_2O^-Na^+~ +~ H_2\end{array}$$

• Reaction with unsaturated hydrocarbons:

When ethanol is heated at 443 K in presence of excess concentrated sulphuric acid then alkene is obtained as the product.

$$\begin{array}{l}CH_3CH_2OH~ \underrightarrow{Conc.~H_2SO_4} ~CH_2=CH_2~ +~ H_2O\end{array}$$