Which solution should be used to neutralize nickel-cadmium battery cases and drains affected by electrolyte?

Which solution should be used to neutralize nickel-cadmium battery cases and drains affected by electrolyte?

• A. Vinegar
• B. Boric acid
• C. Sodium bicarbonate
• D. Saline solution

Answer: (B)

Spill cleanup for nickel-cadmium battery electrolyte targets neutralizing the caustic base in the spill. Boric acid is a good fit because it’s a weak acid, so it neutralizes the hydroxide gently and safely, forming water and potassium borate. This kind of product tends to be easier to rinse off, less corrosive to metal surfaces, and safer to handle around the battery case and drains than stronger acids. Vinegar could also neutralize the base, but it’s a stronger irritant and can leave an acidic residue and odor. Sodium bicarbonate is a base and wouldn’t effectively neutralize the base, and saline solution offers no neutralizing effect. So boric acid provides a safer, more practical neutralization for this situation.

Spill cleanup for nickel-cadmium battery electrolyte targets neutralizing the caustic base in the spill. Boric acid is a good fit because it’s a weak acid, so it neutralizes the hydroxide gently and safely, forming water and potassium borate. This kind of product tends to be easier to rinse off, less corrosive to metal surfaces, and safer to handle around the battery case and drains than stronger acids.

Vinegar could also neutralize the base, but it’s a stronger irritant and can leave an acidic residue and odor. Sodium bicarbonate is a base and wouldn’t effectively neutralize the base, and saline solution offers no neutralizing effect. So boric acid provides a safer, more practical neutralization for this situation.