Kiirguskoefitsient

Kiirguskoefitsient, often translated as flash point, is a term used in chemistry and fire safety. It refers to the lowest temperature at which a liquid can vaporize to form an ignitable mixture in air. At this temperature, the vapor concentration above the liquid surface is sufficient to produce a brief ignition when exposed to an open flame or spark. It is a critical property for assessing the flammability hazards associated with a substance.

The kiirguskoefitsient is distinct from the autoignition temperature, which is the temperature at which a substance will ignite spontaneously without an external ignition source. Liquids with a lower kiirguskoefitsient are considered more flammable and require more careful handling and storage to prevent fires. For example, gasoline has a significantly lower kiirguskoefitsient than diesel fuel, making it more prone to ignition under normal conditions.

Understanding the kiirguskoefitsient is essential for various applications, including the transportation, storage, and processing of flammable liquids. Safety regulations and guidelines often specify maximum allowable temperatures for storage and handling based on a substance's kiirguskoefitsient. It is a key parameter in classifying hazardous materials and determining appropriate fire prevention measures.