HYARC
Hydrogen Properties
Discover the Remarkable Properties of Hydrogen

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Keywords

Air and Water Thermal Properties and Gas Constants
Contains data on the heats of fusion and vaporization for water, heat capacities of air and water, and gas constants.
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.…
Hydrogen Fuel Quality Standards
Presents hydrogen fuel specifications currently prescribed by the State of California.Updated July, 2019.
Hydrogen Mass and Volume Conversion Factors
Hydrogen mass and volume conversion factors at common temperatures and pressures. Data from NIST.
Hydrogen Storage Materials Database
DOE/EERE's database that aims to collect and disseminate materials data and accelerate advanced materials R&D.Visit:  https://www.energy.gov/eere/fuelcells/databases.

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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