Name two inert absorbents used for hazmat spill cleanup.

• A. Clay-based absorbents (e.g., bentonite) and universal sorbents.
• B. Wood chips and paper towels.
• C. Sand and vermiculite.
• D. Salt and baking soda.

Answer: (A)

Absorbents used for hazmat spills are chosen for their chemical inertness and broad compatibility with different liquids. Two inert options commonly used are clay-based absorbents (like bentonite) and universal sorbents. Bentonite clay doesn’t react with most hazardous materials, and its particles trap liquids effectively, providing a stable, non-reactive means to contain and mop up spills. Universal sorbents are specially formulated to soak up a wide range of substances—oil, solvents, and aqueous liquids—while remaining chemically inert, which helps prevent additional reactions or hazards during cleanup and makes disposal follow hazmat guidelines easier.

Other choices aren’t as suitable: wood chips and paper towels are useful for general spills but aren’t always compatible with all hazmat chemicals and may shed fibers or fail to contain reactive liquids. Sand and vermiculite can physically absorb some liquids but aren’t designed for the full range of hazardous materials and, in the case of vermiculite, carry historical asbestos concerns. Salt and baking soda are reactive substances themselves and can alter the spill chemistry rather than simply absorbing it.