Acid
From Captain of Industry Wiki
Acid is an intermediate liquid product used in several production chains including Hydrogen Fluoride and refining Silicon Wafers. It can also be used in the production of Glass Mix and the electrolysis of Copper to increase the efficiency of its other constituent parts. While excess Acid can be dumped back into the sea, it is generally not advised as doing so generates a large amount of Water Pollution.
Recipes
Below are all the recipes, which contain this item. Note, that some of them may be locked behind Research, and not immediately available in your game.
Production