Hydrogen Chloride Gas (HCl) Anhydrous What is hydrogen chloride? Anhydrous hydrogen chloride (HCl) is a toxic, colorless, irritating, corrosive gas that is shipped as a liquid under its own vapor pressure. Hydrogen chloride uses There are several hydrogen chloride uses. Anhydrous Hydrogen Chloride is applied in organic chemical synthesis and as an intermediate in pharmaceutical and rubber manufacturing. Gaseous HCl can likewise be used in the treatment and refining of metal and as a stripping agent for textile fibers. When reaching extremely high purity levels, high-purity hydrogen chloride can also be applied as an etchant in the semiconductor industry. Where to buy hydrogen chloride PurityPlus® offers hydrogen chloride in a variety of purities and concentrations. Our highly-experienced experts can help you find the right gas and advanced specialty gas equipment neccesary to satisfy your individual needs. To learn more about where to buy hydrogen chloridea or the PurityPlus® Hydrogen Chloride availability in your area, use our locator button to find and contact your local PurityPlus® distributor, or call 877-81P-PLUS (877-817-7587). PurityPlus also provides a Hydrogen Chloride SDS available via this link or in the sidebar.