What does BLEVE stand for in the context of hazardous materials?

In the context of hazardous materials, BLEVE stands for Boiling Liquid Expanding Vapor Explosion. This term describes a catastrophic failure that occurs when a vessel containing a pressurized liquid, particularly a flammable or toxic liquid, is heated and eventually leads to the rapid expansion of vapor and the explosive release of energy.

When a liquid reaches its boiling point, especially under pressure, it can turn into vapor at a rapid rate if the pressure is suddenly released, such as when the container is compromised. This process can result in a powerful explosion due to the rapid increase in volume and pressure as the liquid expands into gas. Understanding BLEVE is crucial for emergency responders and others involved in the handling of hazardous materials because it emphasizes the dangers posed by pressurized vessels and the importance of proper handling and storage to prevent such hazardous incidents.