FAQ Keywords: Odorant

Gaseous Hydrogen Safety Considerations
Hydrogen is not currently odorized due to fuel cell contamination, molecular properties, and the challenges posed by cryogenic temperatures.

Most common odorants will contaminate fuel cells. Additionally, hydrogen's small molecule and high buoyancy make it challenging to find a compatible odorant. Research is being conducted on fuel…

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This material was prepared as an account of work sponsored by an agency of the United States Government.
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The portal brings together and enhances the utility of a variety of tools and web-based content on the safety aspects of hydrogen and fuel cell technologies to help inform those tasked with designing, approving or using systems and facilities, as well as those responding to incidents.

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