How does the density of propane vapor compare to air?

Propane vapor is heavier than air, which is an important characteristic to understand in the context of safety and handling of LP-gas. When propane is released into the atmosphere, it tends to accumulate at lower levels or in confined spaces rather than rising and dispersing like lighter gases. This property is crucial for safety because it means that propane leaks can pose significant risks in basements, pits, or other low-lying areas where the vapor might collect. Recognizing that propane vapor is heavier than air helps in taking the necessary precautions during storage, handling, and potential leak situations to ensure safety.