Why is segregation planning important in facilities?

• A. It increases the chance of contact between incompatible chemicals.
• B. It reduces the chance of contact between incompatible chemicals, preventing runaway or explosions.
• C. It has no safety benefit.
• D. It is only aesthetic.

Answer: (D)

Segregation planning focuses on preventing interactions between chemicals that could react violently. By physically keeping incompatible substances apart—such as oxidizers away from fuels, acids away from bases, water-reactives from water, or cyanides from acids—the facility reduces the likelihood that a spill, leak, or improper transfer will bring reactive materials into contact. This minimizes the chance of runaway or exothermic reactions, heat buildup, gas evolution, pressure rise, and the potential for explosions or toxic releases. In practice, segregation involves arranging storage and handling areas with barriers and distance, using dedicated containers and equipment, clear labeling, secondary containment, and controlled transfer procedures to maintain safe separation. Saying there’s no safety benefit or that it’s only aesthetic misses the real hazards posed by chemical reactivity.