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Hydrogen Sulfide

High-purity hydrogen sulfide

Air Liquide manufactures hydrogen sulfide pure gas to be used in a variety of applications, including chemical synthesis, and is available with up to 99.5% purity. Hydrogen sulfide is also a component in various balance gases and available as a gas mixture primarily used in environmental monitoring applications.


Hydrogen sulfide two-component EPA protocol gases

Air Liquide offers hydrogen sulfide two-component gas mixtures as EPA protocols. These EPA protocol gas mixtures are instrumental in helping to avoid non-compliance fines and downtime caused by inaccurate instrument calibration. Air Liquide’s specialty gas manufacturing facilities are registered participants of EPA’s Protocol Gas Verification Program (PGVP). Protocol standards are dual-analyzed and for each reactive component, two separate analyses are performed and analyzed directly against metrology institute standards to determine the concentrations. A Certificate of Accuracy is provided with each cylinder.


Hydrogen sulfide gas mixtures are also manufactured as CEM DAILY STANDARDS and used in applications where the use of EPA protocol gases is not required. Zero blend tolerance is available as a result of our proprietary ACUBLEND™ technology, so that multiple cylinders that exhibit identical concentrations may be ordered. This minimizes the need to recalibrate each time you change out a cylinder.

Related Supply Modes and Services

Air Liquide packages hydrogen sulfide pure gases and gas mixtures in a variety of compressed gas cylinders, including high-pressure stainless steel and aluminum cylinders, lecture bottles and nonreturnable Mini-MixTM Transportable cylinders, depending on the grade of pure gas or composition of the gas mixture and your application. Air Liquide offers a wide range of services to try and meet each customer's needs.