If water-reactive materials are involved, what is the recommended precaution?

If water-reactive materials are involved, what is the recommended precaution?

• A. They may violently react, release heat, emit flammable gases, or explode; keep water away unless specifically approved; use dry chemical or inert suppression methods and isolate the area
• B. They become non-reactive when in contact with water
• C. They require immediate washing with water to dilute
• D. They react only with oxygen, not water

Answer: (C)

Water-reactive materials pose a serious hazard because contact with water can trigger a violent reaction, releasing heat, flammable gases, and even causing an explosion. Because of that, the safest precaution is to keep water away from these materials unless there is a specific, approved procedure. When responding to a spill or fire, the area should be isolated and the preferred suppression methods are dry chemical powders or inert agents, not water. The idea is to avoid introducing water into the situation entirely, since water can fuel or escalate the reaction rather than calm it. Other notions aren’t accurate for water-reactive substances. They do not become non-reactive in water, and the correct approach is not to wash with water to dilute or quench the material. They do not react only with oxygen; water itself can participate in or trigger the reaction, independent of the presence of atmospheric oxygen.

Water-reactive materials pose a serious hazard because contact with water can trigger a violent reaction, releasing heat, flammable gases, and even causing an explosion. Because of that, the safest precaution is to keep water away from these materials unless there is a specific, approved procedure. When responding to a spill or fire, the area should be isolated and the preferred suppression methods are dry chemical powders or inert agents, not water. The idea is to avoid introducing water into the situation entirely, since water can fuel or escalate the reaction rather than calm it.

Other notions aren’t accurate for water-reactive substances. They do not become non-reactive in water, and the correct approach is not to wash with water to dilute or quench the material. They do not react only with oxygen; water itself can participate in or trigger the reaction, independent of the presence of atmospheric oxygen.