What is the flash point of propane?

The flash point of a substance is the lowest temperature at which it can vaporize to form an ignitable mixture in air. For propane, this temperature is quite low, specifically at -156°F (-104°C). This low flash point indicates that propane can easily ignite at relatively high ambient temperatures, making it a highly flammable gas.

Understanding the flash point is crucial for safe handling and storage of propane, especially in retail environments where LP gas is sold. It emphasizes the importance of adhering to safety protocols to prevent fire hazards. The values provided in the other options do not accurately represent the flash point of propane, as they are either too high or not reflective of propane's properties. Knowing the correct flash point helps in implementing necessary safety measures when dealing with propane as a fuel source.