What is the Meaning of Volatile and Non Volatile?

In chemistry, the terms volatile and non-volatile refer to the ability of a substance to vapourize, that is, to turn into a gas or vapor.

Volatile substances are those that easily vaporize at room temperature. They have low boiling points, which means they can quickly change from a liquid or solid state to a gas at relatively low temperatures.

Volatile substances often have a strong smell because their molecules readily escape into the air and reach our noses. Examples include alcohol and gasoline.

On the other hand, Non Volatile substances do not vaporize easily at room temperature. They have higher boiling points and tend to remain in a liquid or solid state under normal conditions.

Non-volatile substances do not produce a strong odor as their molecules do not readily escape into the air. Examples include vegetable oil and glycerin.

The distinction between volatile and non-volatile is important in various applications, including perfume-making, cooking, and industrial processes where control of vaporization is crucial.