What color quadrant on the NFPA label indicates a chemical's reactivity?

The yellow quadrant on the NFPA (National Fire Protection Association) label indicates a chemical's reactivity. This is part of the NFPA's color-coded system designed to provide quick information about the hazards associated with chemicals, particularly in emergency situations.

In this system, each color represents specific types of hazards:

• The red quadrant represents flammability hazards.

• The blue quadrant indicates health hazards.

• The yellow quadrant, which is the correct answer, signifies reactivity hazards, providing information on how a chemical might react under certain conditions, including the potential for explosion or violent reaction.

• The white quadrant is used for special hazards, such as radiation or acid.

Understanding the specific meaning of each colored quadrant allows responders and workers to assess risks and take appropriate safety precautions swiftly. This knowledge is critical in emergency response and daily operations involving hazardous materials.