Battery acid spills can be neutralized using commercial spill kits, such as a J.T. Baker spill kit. A spill kit contains agents that can neutralize sulfuric acid, the acidic component of many car batteries, as well as nitric acid and hydrochloric acid.
Acid spills should never be neutralized with bases. Combustible materials, such as paper towels, should also be avoided. Spill kits contain all the materials needed to neutralize and clean up a spill.
If sulfuric acid is ingested, it can be diluted and neutralized. A person who has ingested the acid should drink water or milk to attempt to neutralize the acid. While this can be effective, the patient's condition will depend on the speed with which treatment and neutralization is provided.