Hydrogen sulfide (H2S) is a problem because it is soluble in water, ionic, and everywhere because all living things that breathe are alive because of sulfur and with every breath exhaled a tiny but measurable amount of H2S goes into the air and then dissolves in any water present. When water for electrolysis is purified, generally by RO, the H2S passes through the membrane and remains as an undesirable ionic contaminant in the water that later becomes H2S during electrolysis mixed with the H2 gas that is generated. When water is truly pure it does not conduct electricity. Anything added to the water to make it conductive will also bring sulfide ions into the water. The only way to make pure H2 is to remove the H2S and other volatile sulfur compounds with the SULFUR MAGNET, a relatively inexpensive water insoluble inorganic compound that is not flammable, and reduces the volatile sulfur compounds that ruin the expensive sulfur sensitive catalysts to below the limit of detection of 200 ppt.

Primarily, H2 Fuel Cells require sulfur free H2 for efficiency and long life, and secondarily NOx free air. The SULFUR MAGNET reduces both to below 200 ppt.