Which property of Benzene contributes to its LEL?

The property of benzene that contributes to its Lower Explosive Limit (LEL) is its volatility. Volatility refers to how readily a substance vaporizes at room temperature. Benzene has a relatively low boiling point and can easily transition from a liquid to a gas. This characteristic is crucial in the context of flammability because the formation of a vapor allows for the potential to mix with air and create an explosive mixture. A lower LEL indicates that a substance can ignite and combust at lower concentrations in the air, making the volatility of benzene a significant factor in its potential for forming explosive mixtures.

Understanding volatility is essential for safety protocols in handling benzene, as areas where benzene is present may require careful monitoring of vapor concentrations to prevent the risk of fire or explosion.