• Thumbnail for Hydrogenation
    non-catalytic hydrogenation takes place only at very high temperatures. Hydrogenation reduces double and triple bonds in hydrocarbons. Hydrogenation has three...
    38 KB (4,071 words) - 16:46, 23 June 2024
  • Thumbnail for Hydrogen
    cleavage of bonds by hydrogen. Illustrative is the separation of sulfur from liquid fossil fuels: R2S + 2 H2 → H2S + 2 RH Hydrogenation, the addition of H2...
    121 KB (12,377 words) - 17:19, 7 September 2024
  • Thumbnail for Fat hydrogenation
    Fat hydrogenation is the process of combining unsaturated fat with hydrogen in order to partially or completely convert it into saturated fat. Typically...
    17 KB (1,667 words) - 17:48, 3 August 2024
  • Asymmetric hydrogenation is a chemical reaction that adds two atoms of hydrogen to a target (substrate) molecule with three-dimensional spatial selectivity...
    64 KB (6,355 words) - 10:03, 21 August 2024
  • Hydrogen gas is produced by several industrial methods. Nearly all of the world's current supply of hydrogen is created from fossil fuels.: 1  Most hydrogen...
    111 KB (11,007 words) - 06:33, 29 August 2024
  • need for high-pressure molecular H2 used in conventional hydrogenation. Transfer hydrogenation usually occurs at mild temperature and pressure conditions...
    13 KB (1,292 words) - 14:45, 29 February 2024
  • Hydrogenics is a developer and manufacturer of hydrogen generation and fuel cell products based on water electrolysis and proton-exchange membrane (PEM)...
    16 KB (1,473 words) - 13:31, 1 November 2023
  • Thumbnail for Hydrogen safety
    Hydrogen safety covers the safe production, handling and use of hydrogen, particularly hydrogen gas fuel and liquid hydrogen. Hydrogen possesses the NFPA...
    57 KB (4,410 words) - 06:39, 27 August 2024
  • Thumbnail for Hydrogen embrittlement
    Hydrogen embrittlement (HE), also known as hydrogen-assisted cracking or hydrogen-induced cracking (HIC), is a reduction in the ductility of a metal due...
    38 KB (4,332 words) - 16:39, 5 September 2024
  • Thumbnail for Hydrogen peroxide
    typically by hydrogenation on a palladium catalyst. In the presence of oxygen, the anthrahydroquinone then undergoes autoxidation: the labile hydrogen atoms...
    91 KB (9,240 words) - 06:02, 6 September 2024
  • Thumbnail for Hydrogen train
    includes hydrogen trains, zero-emission multiple units, or ZEMUs — generic terms describing rail vehicles, large or small, which use on-board hydrogen fuel...
    38 KB (3,921 words) - 08:02, 5 September 2024
  • Green hydrogen (GH2 or GH2) is hydrogen produced by the electrolysis of water, using renewable electricity. Production of green hydrogen causes significantly...
    66 KB (6,204 words) - 14:05, 21 August 2024
  • Thumbnail for Hydrogen storage
    utilize CO2 at the point source, CO2 hydrogenation is a realistic and practical approach. Conventional hydrogenation reduces unsaturated organic compounds...
    134 KB (14,151 words) - 03:23, 2 September 2024
  • Thumbnail for Hydrogen bond
    In chemistry, a hydrogen bond (or H-bond) is primarily an electrostatic force of attraction between a hydrogen (H) atom which is covalently bonded to a...
    46 KB (5,422 words) - 04:08, 12 August 2024
  • Natural hydrogen (known as white hydrogen, geologic hydrogen, geogenic hydrogen, or gold hydrogen), is hydrogen that is formed by natural processes (as...
    18 KB (1,882 words) - 12:49, 2 September 2024
  • Thumbnail for Hydrogen sulfide
    favorable thermodynamics for the hydrogenation of sulfur implies that the dehydrogenation (or cracking) of hydrogen sulfide would require very high temperatures...
    76 KB (7,951 words) - 00:23, 5 September 2024
  • Thumbnail for Hydrogen polyoxide
    Hydrogen polyoxides (also known as oxidanes, oxohydrogens, or oxyhydrogens) are chemical compounds that consist only of hydrogen and oxygen atoms, are...
    6 KB (590 words) - 09:15, 11 June 2024
  • Thumbnail for Hydrogen atom
    A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral hydrogen atom contains a nucleus of a single positively charged proton...
    39 KB (6,015 words) - 14:12, 30 August 2024
  • A hydrogen carrier is an organic macromolecule that transports atoms of hydrogen from one place to another inside a cell or from cell to cell for use in...
    3 KB (301 words) - 22:40, 13 December 2023
  • Thumbnail for PH
    PH (redirect from Power of hydrogen)
    as acidity or basicity, historically denotes "potential of hydrogen" (or "power of hydrogen"). It is a logarithmic scale used to specify the acidity or...
    52 KB (6,462 words) - 06:34, 26 August 2024
  • Thumbnail for Hydrogen iodide
    Hydrogen iodide (HI) is a diatomic molecule and hydrogen halide. Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid...
    13 KB (1,372 words) - 22:19, 15 May 2024
  • Generation IV reactor Hydrogen bomb Dehydrogenation Hydrogenation Hydrogenolysis Hydrogen odorant Atomic hydrogen welding Hydrogen-cooled turbogenerator...
    13 KB (1,232 words) - 04:07, 17 August 2024
  • The compound hydrogen chloride has the chemical formula HCl and as such is a hydrogen halide. At room temperature, it is a colorless gas, which forms white...
    27 KB (2,805 words) - 05:57, 13 August 2024
  • Thumbnail for Hydrogen cyanide
    Hydrogen cyanide (formerly known as prussic acid) is a chemical compound with the formula HCN and structural formula H−C≡N. It is a highly toxic and flammable...
    46 KB (4,607 words) - 21:22, 27 August 2024
  • Thumbnail for Hydrogen vehicle
    A hydrogen vehicle is a vehicle that uses hydrogen to move. Hydrogen vehicles include some road vehicles, rail vehicles, space rockets, forklifts, ships...
    100 KB (9,249 words) - 16:23, 26 August 2024
  • Thumbnail for Isotopes of hydrogen
    Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted 1 H , 2 H , and 3 H . 1 H and 2 H are stable, while 3 H has a half-life of 12.32(2)...
    17 KB (2,027 words) - 20:39, 26 August 2024
  • Thumbnail for Hydrogen economy
    Nam Energy Association have included green hydrogenation support. Australian clean energy company Pure Hydrogen Corporation Limited announced on July 22...
    80 KB (8,568 words) - 08:00, 5 September 2024
  • Thumbnail for Hydrogen tanker
    A hydrogen tanker or liquid hydrogen tanker is a tank ship designed for transporting liquefied hydrogen. The World Energy Network research program of...
    5 KB (431 words) - 09:04, 14 August 2024
  • for hydrogen. In principle, every unsaturated compound (organic molecules with C-C double or triple bonds) can take up hydrogen during hydrogenation. The...
    14 KB (1,659 words) - 20:13, 22 July 2024
  • Metallic hydrogen is a phase of hydrogen in which it behaves like an electrical conductor. This phase was predicted in 1935 on theoretical grounds by...
    29 KB (3,302 words) - 18:43, 31 August 2024