What color diamond represents instability hazards?

The color yellow is used to represent instability hazards in the context of chemical safety and hazard classification. In a diamond labeling system, yellow indicates that a substance can undergo a chemical change or pose a hazard due to its unstable nature when exposed to certain conditions, such as heat, shock, or friction. This might include materials that can explode, release toxic gases, or change volume dramatically upon reaction with other substances.

Other colors in the diamond system convey different types of hazards, such as red for flammability, blue for health risks, and white for specific information or hazards not covered by other colors. By associating instability hazards with yellow, first responders and those handling chemicals can quickly identify and address potential risks, ensuring safety protocols are upheld when dealing with unpredictable substances.