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Hydrogen is a
chemical element; it has the
symbol H and
atomic number 1. It is the
lightest and most
abundant chemical element in the universe, constituting...
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Hydrogenation is a
chemical reaction between molecular hydrogen (H2) and
another compound or element,
usually in the
presence of a
catalyst such as nickel...
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Hydrogen peroxide is a
chemical compound with the
formula H2O2. In its pure form, it is a very pale blue
liquid that is
slightly more
viscous than water...
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Hydrogen sulfide is a
chemical compound with the
formula H2S. It is a
colorless chalcogen-hydride gas, and is toxic, corrosive, and flammable.
Trace amounts...
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Hydrogenics is a
developer and
manufacturer of
hydrogen generation and fuel cell
products based on
water electrolysis and proton-exchange
membrane (PEM)...
- In chemistry, a
hydrogen bond (H-bond) is a
specific type of
molecular interaction that
exhibits partial covalent character and
cannot be
described as...
- as
acidity or basicity,
historically denotes "potential of
hydrogen" (or "power of
hydrogen"). It is a
logarithmic scale used to
specify the
acidity or...
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Hydrogen safety covers the safe production,
handling and use of
hydrogen,
particularly hydrogen gas fuel and
liquid hydrogen.
Hydrogen possesses the NFPA...
- The
hydrogen economy is an
umbrella term for the
roles hydrogen can play
alongside low-carbon
electricity to
reduce emissions of
greenhouse gases. The...
- A
hydrogen vehicle is a
vehicle that uses
hydrogen to move.
Hydrogen vehicles include some road vehicles, rail vehicles,
space rockets, forklifts, ships...
