Selvtenningstemperatur

Selvtenningstemperatur refers to the lowest temperature at which a combustible material will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. This phenomenon is also known as autoignition temperature or spontaneous combustion point. The self-ignition temperature is a crucial property in assessing fire hazards and determining safe handling and storage procedures for various substances. Different materials have vastly different self-ignition temperatures. For example, many common organic materials like wood or cotton have relatively high self-ignition temperatures, while certain finely divided metals or pyrophoric substances can ignite at much lower temperatures, sometimes even at room temperature. Factors such as the presence of catalysts, the surface area of the material, and the surrounding atmospheric conditions can influence the self-ignition temperature. Understanding this temperature is vital in industries dealing with chemicals, fuels, and other potentially flammable substances to prevent accidental fires and explosions. It is a key parameter used in risk assessments and the design of safety systems.