What is the vapor density of propane?

The vapor density of propane is 1.6. This value indicates how heavy propane gas is compared to air. Vapor density is calculated as the ratio of the mass of a volume of gas to the mass of an equal volume of air. Since air has a vapor density of approximately 1.0, a vapor density of 1.6 for propane indicates that propane is heavier than air.

This property is significant for fire fighters and first responders because if propane is released in an open space, it will tend to accumulate in low-lying areas, increasing the risk of fire and explosion in those locations. Understanding vapor density is crucial for developing effective safety and mitigation strategies when dealing with propane incidents.