Hydrogen Gas or Liquid Hydrogen (H2) What is hydrogen used for? PurityPlus® offers liquid hydrogen and compressed hydrogen gas at a variety of concentrations and purities. Hydrogen (H2) is the most lightweight gas and has an extremely low ignition energy requirement, along with a clear flame when burning. Due to its low liquid density and high liquid temperature, hydrogen may be liquefied with the proper equipment and transported over great distances. Hydrogen has considerable potential as a clean energy source due to the fact that the combustion of H2 does not emit carbon dioxide. Regardless of your specific use of hydrogen, high-purity hydrogen can be applied in several industries and applications including Chemical Synthesis, Food and Beverage, Pharmaceuticals, Metal Production and Fabrication, Electronics, Aerospace, and even as a purging cooling agent in the generation of electric power. PurityPlus® hydrogen purities reach Ultra Carrier and Research Grades with minimum purities of 99.9995 and 99.9999%, respectively, along with Ultra High Purity at 99.999% pure. These hydrogen products are utilized most often in gas chromatography, as both a carrier gas and as a flame support gas for flame ionization (FID) and flame photometric (FPD) detectors. Where to buy hydrogen If you're in search of where to buy hydrogen or looking to learn more about how the hydrogen experts at PurityPlus® can supply your company’s specialized needs, find your nearest PurityPlus® specialty gas manufacturer by using the Find Your Nearest Provider button, or call 877-81P-PLUS (877-817-7587). PurityPlus also provides a Hydrogen SDS available via this link or in the sidebar.