It is common to see the white residue on the ground in battery recharging areas. This is as a result of the sulphuric acid in the batteries boiling over during battery recharge and damaging the concrete.
At a 35% concentration, this acid is not immediately damaging but that concentration can increase as the water evaporates from the solution and can start to cause serious damage to personnel and property. The acid battery spill kit from Spill Station Australia is designed to neutralise and absorb acid spills in one easy step. An alkali battery spill kit is also available.