Which procedure should be followed if electrolyte from a lead-acid battery is spilled in the battery compartment?

• A. Apply boric acid solution to the affected area followed by a water rinse.
• B. Apply sodium bicarbonate solution to the affected area followed by a water rinse.
• C. Rinse the affected area thoroughly with clean water.
• D. Blot with absorbent material and neutralize with acid.

Answer: (B)

Spilled electrolyte from a lead‑acid battery is sulfuric acid, so the cleanup goal is to neutralize the acid and then flush it away. Sodium bicarbonate is a mild base that reacts with sulfuric acid to form neutral salts, water, and carbon dioxide. Applying a sodium bicarbonate solution neutralizes the acid in the spill, and following that with a rinse removes the neutralized material from the area, reducing corrosion and chemical burn risk. Using boric acid wouldn’t effectively neutralize the acid, rinsing alone leaves some acid behind, and neutralizing with acid would worsen the spill. So, neutralize with sodium bicarbonate solution, then rinse with clean water. Remember to wear eye protection and gloves and ensure good ventilation when handling battery spills.