Sulfuric Acid is a Liquid that is used to create Batteries and Processing units. It is converted, by the Chemical plant, from Sulfur, Water, and Iron plates. From 0.15 it's used in the mining of Uranium ore.
The optimal ratio for Sulfuric Acid production is two Sulfuric acid Chemical plants for every five Sulfur Chemical plants.
Two Sulfuric acid Chemical plants produce enough Sulfuric acid for 25 Battery Chemical plants, or for 300 Processing unit assemblers (if Assembler 3 is used).