HYARC
Hydrogen Consumption
Empowering Progress, Fueling Tomorrow.

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Comparative Properties of Hydrogen and Other Fuels
PropertyUnitsHydrogenMethanePropaneMethanolEthanolGasolineChemical Formula H2CH4C3H8CH3OHC2H5OHCxHy (x = 4 - 12)Molecular Weight [a, b] 2.0216.0444.132.0446.07100 - 105Density, NTP [3, a, c]kg/m³0.08380.6681.87791789751 lb/ft³0.…
Fuel Cell Types - Descriptions and Characteristics
Explains the reactions, electrolyte material, applications, and other information about the various types of fuel cells.
Hydrogen Pipelines
Contains information on the lengths of hydrogen pipeline in the U.S., Europe, and the rest of the world by location and ownership.
Properties of Hydrogen at Normal Boiling Point
Properties of Hydrogen at Normal Boiling Point.

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.

Copyright © 2025 by H2Tools; H2 Tools is intended for public use. It was built, and is maintained, by the Pacific Northwest National Laboratory with funding from the DOE Office of Energy Efficiency and Renewable Energy's Hydrogen and Fuel Cell Technologies Office. All Rights Reserved
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