At what volume percentage is ethane considered at its lower flammability limit (LFL)?

Ethane is considered to be at its lower flammability limit (LFL) at a volume percentage of 2.9%. The LFL is the minimum concentration of a gas in air that can ignite and sustain combustion. Below this concentration, there is not enough ethane to support a flame when combined with air.

Understanding the significance of the LFL is vital for ensuring safety in environments where flammable gases may be present. In the case of ethane, a concentration below 2.9% in air will not lead to an explosive atmosphere, highlighting the importance of monitoring gas concentrations in industrial settings. This concept is critical when evaluating fire hazards, as operational safety measures rely on maintaining gas concentrations well above the LFL to prevent accidental ignition.