Which class of hazardous materials includes materials that are capable of causing an explosive reaction?

The class of hazardous materials that includes materials capable of causing an explosive reaction is explosives. This category consists of substances that can undergo a rapid chemical reaction, resulting in the release of energy in the form of an explosion. Explosives can be classified into various groups based on their sensitivity, stability, and types of reactions, and they pose significant hazards during handling, storage, and transportation.

Understanding the nature of explosives is crucial for first responders and firefighters, as these materials can create dangerous situations, including severe injuries and widespread destruction. Responders must be aware of the properties of explosives, their behavior under certain conditions, and appropriate safety measures to manage incidents involving these materials effectively.

The other categories such as gases, flammable liquids, and corrosives represent materials with their own hazards but do not inherently possess the explosive characteristics defined within explosive materials. Gases may be flammable or toxic, flammable liquids can ignite and cause fires, while corrosives can damage tissue and materials upon contact. However, none of these categories include materials that fulfill the criteria for explosive reactions as defined in hazardous materials classifications.