Hydrogen can be produced from the decomposition of a wide array of molecules in a Chemical Decomposer. The easiest molecules to obtain are Water from buckets of water (yields 2 hydrogen atoms) and Cellulose from numerous plant and plant-derived items such as wood or paper (yields 10 hydrogen atoms). As of version 5.0.5, the molecules that yield the most atoms of hydrogen are Polyvinyl Chloride (192 atoms), Tannic Acid (182 atoms), Polyisobutylene Rubber (136 atoms), Nodularin (60 atoms), and Keratin (59 atoms).
Fission Chamber Edit
Hydrogen can be created by splitting Helium or Lithium in the Fission Chamber.
When a full stack of hydrogen is applied to the Polytool, the tool will cause an explosion if the attacked target is already on fire.
Because of hydrogen's simplicity, stability, and ubiquity, it is a very useful element in the Fusion Chamber. Given enough time and power, a large supply of hydrogen can be used to create any element desired.