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Magnesium hydride information


Magnesium hydride
Names
IUPAC name
Magnesium hydride
Identifiers
CAS Number
  • 7693-27-8 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:25107 checkY
ChemSpider
  • 16787263 checkY
ECHA InfoCard 100.028.824 Edit this at Wikidata
EC Number
  • 231-705-3
PubChem CID
  • 107663
UNII
  • Y93032D743 checkY
InChI
  • InChI=1S/Mg.2H checkY
    Key: RSHAOIXHUHAZPM-UHFFFAOYSA-N checkY
  • InChI=1/Mg.2H/rH2Mg/h1H2
    Key: RSHAOIXHUHAZPM-HZAFDXBCAG
SMILES
  • [MgH2]
Properties
Chemical formula
MgH2
Molar mass 26.3209 g/mol
Appearance white crystals
Density 1.45 g/cm3
Melting point 327 °C (621 °F; 600 K) decomposes
Solubility in water
decomposes
Solubility insoluble in ether
Structure
Crystal structure
tetragonal
Thermochemistry
Heat capacity (C)
35.4 J/mol K
Std molar
entropy (S298)
31.1 J/mol K
Std enthalpy of
formation fH298)
-75.2 kJ/mol
Gibbs free energy fG)
-35.9 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
pyrophoric[1]
Related compounds
Other cations
Beryllium hydride
Calcium hydride
Strontium hydride
Barium hydride
Related Magnesium hydrides
Magnesium monohydride Mg4H6
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Magnesium hydride is the chemical compound with the molecular formula MgH2. It contains 7.66% by weight of hydrogen and has been studied as a potential hydrogen storage medium.[2]

  1. ^ Michalczyk, Michael J (1992). "Synthesis of magnesium hydride by the reaction of phenylsilane and dibutylmagnesium". Organometallics. 11 (6): 2307–2309. doi:10.1021/om00042a055.
  2. ^ Bogdanovic, Borislav (1985). "Catalytic Synthesis of Organolithium and Organomagnesium Compounds and of Lithium and Magnesium Hydrides - Applications in Organic Synthesis and Hydrogen Storage". Angewandte Chemie International Edition in English. 24 (4): 262–273. doi:10.1002/anie.198502621.

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Magnesium hydride

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Magnesium hydride is the chemical compound with the molecular formula MgH2. It contains 7.66% by weight of hydrogen and has been studied as a potential...

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Magnesium monohydride

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originally known as magnesium hydride, although that name is now more commonly used when referring to the similar chemical magnesium dihydride. George Downing...

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Magnesium

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(Epsom salts). As recently as 2020 Magnesium hydride was under investigation as a way to store hydrogen. Magnesium has three stable isotopes: 24 Mg, 25...

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Magnesium nickel hydride

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Magnesium nickel hydride is the chemical compound Mg2NiH4. It contains 3.6% by weight of hydrogen and has been studied as a potential hydrogen storage...

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Magnesium compounds

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salts). Magnesium hydride was first prepared in 1951 by the reaction between hydrogen and magnesium under high temperature, pressure and magnesium iodide...

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Hydrogen infrastructure

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technologies Liquid hydrogen Liquid hydrogen tank truck Sodium aluminium hydride Magnesium hydride Pressure regulator "Hydrogen infrastructure project launches in...

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Beryllium hydride

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"The Preparation of the Hydrides of Zinc, Cadmium, Beryllium, Magnesium and Lithium by the Use of Lithium Aluminum Hydride". Journal of the American...

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Calcium hydride

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Calcium hydride is the chemical compound with the formula CaH2, an alkaline earth hydride. This grey powder (white if pure, which is rare) reacts vigorously...

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Strontium hydride

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Strontium hydride reacts with water and produces hydrogen and strontium hydroxide: SrH2 + 2 H2O → 2 H2 + Sr(OH)2 Beryllium hydride Magnesium hydride Calcium...

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Lithium hydride

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Lithium hydride is an inorganic compound with the formula LiH. This alkali metal hydride is a colorless solid, although commercial samples are grey. Characteristic...

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List of inorganic compounds

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MgF2 Magnesium fluorophosphate – MgPO3F Magnesium gluconate – Mg(HOCH2(CHOH)4CO2)2 Magnesium hydride – MgH2 Dimagnesium phosphate – MgHPO4 Magnesium hydroxide...

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Fluorohydride salt

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C. E. (2014). "Hydriding characteristics of NaMgH2F with preliminary technical and cost evaluation of magnesium-based metal hydride materials for concentrating...

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Lithium aluminium hydride

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Lithium aluminium hydride, commonly abbreviated to LAH, is an inorganic compound with the chemical formula Li[AlH4] or LiAlH4. It is a white solid, discovered...

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List of named alloys

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Staballoy (stainless steel). Uranium hydride (hydrogen) Mulberry (alloy) (niobium, zirconium) Zamak (aluminium, magnesium, copper) Electroplated zinc alloys...

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Polonium hydride

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polonium hydride upon formation. Trace quantities of polonium hydride may be prepared by reacting hydrochloric acid with polonium-plated magnesium foil....

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Hydrogen storage

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hydrides of magnesium or transition metals and complex metal hydrides, typically containing sodium, lithium, or calcium and aluminium or boron. Hydrides chosen...

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Binary compounds of hydrogen

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Lester Andrews (2004). "Infrared Spectra of Magnesium Hydride Molecules, Complexes, and Solid Magnesium Dihydride". The Journal of Physical Chemistry...

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Caesium hydride

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difficult to make caesium hydride in a pure form. Caesium hydride can be produced by heating caesium carbonate and metallic magnesium in hydrogen at 580 to...

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Magnesium iron hexahydride

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Magnesium iron hexahydride is an inorganic compound with the formula Mg2FeH6. It is a green diamagnetic solid that is stable in dry air. The material...

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Magnesium anthracene

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Hydrogen induces release of anthracene, yielding magnesium hydride (MgH2). Borislav Bogdanovic (1988). "Magnesium Anthracene Systems and Their Application in...

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Iodide hydride

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Iodide hydrides are mixed anion compounds containing hydride and iodide anions. Many iodide hydrides are cluster compounds, containing a hydrogen atom...

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Helium hydride ion

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The helium hydride ion, hydridohelium(1+) ion, or helonium is a cation (positively charged ion) with chemical formula HeH+. It consists of a helium atom...

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Energy storage

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Fraunhofer-Gesellschaft. Powerpaste is made by combining magnesium powder with hydrogen to form magnesium hydride in a process conducted at 350 °C and five to six...

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Silane

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silicon tetrafluoride (SiF4) with sodium hydride (NaH) or reduction of SiCl4 with lithium aluminium hydride (LiAlH4). Another commercial production of...

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Wolf 359

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including those of carbon monoxide (CO), iron hydride (FeH), chromium hydride (CrH), water (H2O), magnesium hydride (MgH), vanadium(II) oxide (VO), titanium(II)...

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MgCu2

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MgCu2 can be prepared by hydrogenation of Mg2Cu or the reaction of magnesium hydride and metallic copper at elevated temperature and pressure: 2 Mg2Cu...

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List of CAS numbers by chemical compound

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MgF2 magnesium fluoride 7783–40–6 MgH2 magnesium hydride 7693–27–8 MgI2 magnesium iodide 10377–58–9 Mg(NO3)2 magnesium nitrate 10377–60–3 MgO magnesium oxide...

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Magnesium silicide

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(alkali metal) silicides. The early development of silicon hydrides relied on this reaction. Magnesium silicide is used to create aluminium alloys of the 6000...

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Sodium borohydride

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Brown-Schlesinger process sodium borohydride is industrially prepared from sodium hydride (produced by reacting Na and H2) and trimethyl borate at 250–270 °C: B(OCH3)3...

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Pyrophoricity

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Metal hydrides (sodium hydride, lithium aluminium hydride, uranium trihydride) Partially or fully alkylated derivatives of metal and nonmetal hydrides (diethylaluminium...

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