What is the relationship of propane gas to air regarding its weight?

Propane gas is classified as heavier than air. This characteristic is important in safety and handling procedures because, in the event of a leak, propane will tend to accumulate in low-lying areas rather than disperse upwards like lighter gases. Understanding this property allows for better risk assessment and response strategies in environments where propane is used or stored. For instance, effective ventilation systems are essential in areas where propane is present to prevent the accumulation of this heavier-than-air gas. This property of propane significantly influences both design considerations for facilities and emergency response protocols in the event of a gas leak.