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Magnesium bromide information


Magnesium bromide[1]
Identifiers
CAS Number
  • 7789-48-2 (anhydrous) checkY
  • 13446-53-2 (hexahydrate) ☒N
  • 75198-45-7 (decahydrate) ☒N
3D model (JSmol)
  • Interactive image
ChemSpider
  • 74219 checkY
ECHA InfoCard 100.029.246 Edit this at Wikidata
PubChem CID
  • 522691
UNII
  • 2VC6P60SLN checkY
CompTox Dashboard (EPA)
  • DTXSID7064865 Edit this at Wikidata
InChI
  • InChI=1S/2BrH.Mg/h2*1H;/q;;+2/p-2 checkY
    Key: OTCKOJUMXQWKQG-UHFFFAOYSA-L checkY
  • InChI=1/2BrH.Mg/h2*1H;/q;;+2/p-2
    Key: OTCKOJUMXQWKQG-NUQVWONBAY
SMILES
  • [Mg+2].[Br-].[Br-]
Properties
Chemical formula
  • MgBr2 (anhydrous)
  • MgBr2·6H2O (hexahydrate)
Molar mass 184.113 g/mol (anhydrous)
292.204 g/mol (hexahydrate)
Appearance white hygroscopic hexagonal crystals (anhydrous)
colorless monoclinic crystals (hexahydrate)
Density 3.72 g/cm3 (anhydrous)
2.07 g/cm3 (hexahydrate)
Melting point 711 °C (1,312 °F; 984 K) 172.4 °C, decomposes (hexahydrate)
Boiling point 1,250 °C (2,280 °F; 1,520 K)
Solubility in water
102 g/(100 mL) (anhydrous)
316 g/(100 mL) (0 °C, hexahydrate)
Solubility ethanol: 6.9 g/(100 mL)
methanol: 21.8 g/(100 mL)
Magnetic susceptibility (χ)
−72.0·10−6 cm3/mol
Structure
Crystal structure
Rhombohedral, hP3
Space group
P-3m1, No. 164
Coordination geometry
octahedral
Thermochemistry
Heat capacity (C)
70 J/(mol·K)
Std molar
entropy (S298)
117.2 J·mol−1·K−1
Std enthalpy of
formation fH298)
−524.3 kJ·mol−1
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Safety data sheet (SDS) External SDS
Related compounds
Other anions
  • Magnesium fluoride
  • Magnesium chloride
  • Magnesium iodide
Other cations
  • Beryllium bromide
  • Calcium bromide
  • Strontium bromide
  • Barium bromide
  • Radium bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Magnesium bromide is a chemical compound of magnesium and bromine, with the chemical formula MgBr2. It is white and deliquescent crystalline solid. It is often used as a mild sedative and as an anticonvulsant for treatment of nervous disorders.[2] It is water-soluble and somewhat soluble in alcohol. It can be found naturally in small amounts in some minerals such as: bischofite and carnallite, and in sea water, such as that of the Dead Sea.[3][4]

  1. ^ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, Florida: CRC Press. pp. 4–67. ISBN 0-8493-0594-2.
  2. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  3. ^ Gruyter, W. Concise Encyclopedia Chemistry, Walter de Gruyter & Company: Berlin, 1993; 612
  4. ^ Lewis, R.J. Hawley’s Condensed Chemical Dictionary, 15th ed.; John Wiley &Sons Inc.:New York, 2007; 777

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Magnesium bromide

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Magnesium bromide is a chemical compound of magnesium and bromine, with the chemical formula MgBr2. It is white and deliquescent crystalline solid. It...

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Phenylmagnesium bromide

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Phenylmagnesium bromide, with the simplified formula C 6H 5MgBr, is a magnesium-containing organometallic compound. It is commercially available as a...

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Magnesium

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formed by reaction of magnesium with haloalkanes. Examples of Grignard reagents are phenylmagnesium bromide and ethylmagnesium bromide. The Grignard reagents...

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Cyclopentadienyl magnesium bromide

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Cyclopentadienyl magnesium bromide is a chemical compound with the molecular formula C5H5MgBr. The molecule consists of a magnesium atom bonded to a bromine...

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Allylmagnesium bromide

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solution in diethyl ether. It may be synthesized by treatment of magnesium with allyl bromide while maintaining the reaction temperature below 0 °C to suppress...

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List of inorganic compounds

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Iron(II) bromide – FeBr2 Iron(III) bromide – FeBr3 Lead(II) bromide – PbBr2 Lithium bromide – LiBr Magnesium bromide – MgBr2 Mercury(I) bromide – Hg2Br2...

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Magnesium chloride

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Magnesium chloride is an inorganic compound with the formula MgCl2. It forms hydrates MgCl2·nH2O, where n can range from 1 to 12. These salts are colorless...

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Allyl bromide

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secobarbital and thiamylal. Allyl bromide reacts with magnesium metal in dry ether to form allylmagnesium bromide, a Grignard reagent: CH2=CHCH2Br +...

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Reactions of organocopper reagents

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copper(I) bromide, and lithium bromide. Organocopper complexes very often need Lewis acid activation in order to react efficiently; magnesium bromide generated...

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Magnesium compounds

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carbonate, magnesium chloride, magnesium citrate, magnesium hydroxide (milk of magnesia), magnesium oxide, magnesium sulfate, and magnesium sulfate heptahydrate...

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Calcium bromide

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Calcium bromide is the name for compounds with the chemical formula CaBr2(H2O)x. Individual compounds include the anhydrous material (x = 0), the hexahydrate...

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Barium bromide

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Barium bromide is the chemical compound with the formula BaBr2. It is ionic and hygroscopic in nature. BaBr2 crystallizes in the lead chloride (cotunnite)...

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Magnesium iodide

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Magnesium iodide is an inorganic compound with the chemical formula MgI2. It forms various hydrates MgI2·xH2O. Magnesium iodide is a salt of magnesium...

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Heptane

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chloride with n-propyl magnesium bromide. The 3,3-dimethylpentane isomer can be prepared from tert-amyl chloride and ethyl magnesium bromide. Acute exposure...

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List of desiccants

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Copper(II) sulfate Lithium chloride Lithium bromide Magnesium chloride hexahydrate Magnesium sulfate Magnesium perchlorate Molecular sieve Phosphorus pentoxide...

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Methylmagnesium chloride

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tetrahydrofuran. Relative to the more commonly encountered methylmagnesium bromide and methylmagnesium iodide, methylmagnesium chloride offers the advantages...

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Magnesium fluoride

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Magnesium fluoride is an ionically bonded inorganic compound with the formula MgF2. The compound is a white crystalline salt and is transparent over a...

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Grignard reagent

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reducing Grignard such as n-butylmagnesium bromide. In the Boord olefin synthesis, the addition of magnesium to certain β-haloethers results in an elimination...

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Radium bromide

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Radium bromide is the bromide salt of radium, with the formula RaBr2. It is produced during the process of separating radium from uranium ore. This inorganic...

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Phenylsodium

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by Nef in 1903. Although the behavior of phenylsodium and phenyl magnesium bromide are similar, the organosodium compound is very rarely used. The existence...

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Dimethylmagnesium

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of Dimethylmagnesium with Benzophenone and of Methylmagnesium Bromide-Magnesium Bromide with Pinacolone". J. Org. Chem. 27 (2): 596–598. doi:10.1021/jo01049a060...

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Vinyl bromide

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acrylate polymers. Vinyl bromide reacts with magnesium to give the corresponding Grignard reagent CH2=CHMgBr. Vinyl bromide is listed in List of IARC...

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Solubility table

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S T U V W X Y Z "Cerium (III) Acetate" (PDF). Retrieved 2019-09-28. "Magnesium Sulfite" (PDF). srdata.nist.gov. Retrieved 2018-12-21. Patnaik, Pradyot...

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Propargyl bromide

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propargyl bromide in a Barbier-type reaction to yield alkynyl alcohols: At low temperatures, upon treatment with magnesium, propargyl bromide gives the...

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Polypyrrole

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Pieroni, who reported the formation of pyrrole blacks from pyrrole magnesium bromide. Since then pyrrole oxidation reaction has been studied and reported...

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Ferrocene

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To that end, they reacted the Grignard compound cyclopentadienyl magnesium bromide in diethyl ether with ferric chloride as an oxidizer. However, instead...

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