What is the vapor density of propane?

The vapor density of a substance refers to the density of its vapor compared to the density of air. For propane, the vapor density is approximately 1.6. This means that propane vapor is 1.6 times heavier than air. Understanding vapor density is crucial for safety, especially in rescue and emergency scenarios, as it influences how propane behaves when released into the atmosphere. Heavier vapors tend to accumulate in low-lying areas, which can pose a risk of explosion or asphyxiation.

This value is significant for emergency responders to assess the potential risks associated with propane leaks, as it guides their approach to containment and evacuation measures. It is important not to confuse vapor density with other properties such as liquefied gas density or specific gravity, which quantify different characteristics.