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13112

Sigma-Aldrich

Magnesium

powder, ≥99%

Synonym(s):

Magnesium element

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About This Item

Empirical Formula (Hill Notation):
Mg
CAS Number:
7439-95-4
Molecular Weight:
24.31
Beilstein/REAXYS Number:
4948473
EC Number:
231-104-6
MDL number:
MFCD00085308
UNSPSC Code:
12141502
eCl@ss:
38110201
PubChem Substance ID:
57647054
NACRES:
NA.22

vapor pressure

1 mmHg ( 621 °C)

Quality Level

200

assay

≥99%

form

powder

autoignition temp.

950 °F

reaction suitability

reagent type: reductant

resistivity

4.46 μΩ-cm, 20°C

impurities

≤0.05% insoluble in HCl

bp

1090 °C (lit.)

mp

648 °C (lit.)

density

1.74 g/mL at 25 °C (lit.)

cation traces

Fe: ≤500 mg/kg

SMILES string

[Mg]

InChI

1S/Mg

InChI key

FYYHWMGAXLPEAU-UHFFFAOYSA-N

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Application

Magnesium (powder) can be used as a reducing agent to synthesize:
  • Titanium alloy hydride powder by the reduction of upgraded titania slag (UGS) under hydrogen atmosphere.      
  • Ultrafine metallic iron (bcc-Fe) powders from hematite (α-Fe2O3) by ball-milling process.

It can also be used as a reducing agent in ruthenium(III) complex catalyzed atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions. Magnesium does not generate free radicals but it generates and regenerates the catalytically active ruthenium(II) species.

Analysis Note

appearance : silver-gray

pictograms

Flame
GHS02

signalword

Danger

Hazard Classifications

Flam. Sol. 1 - Self-heat. 1 - Water-react 2

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4783
STBL0498
STBK7761
STBK4070
STBK1042

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Hyperbranched polyalkenylsilanes by hydrosilylation with platinum catalysts. I. Polymerization
Drohmann C, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 38(4), 741-751 (2000)
Uttley C.
Magnesium, 4-4 null
Katrin Thommes et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 13(24), 6899-6907 (2007-06-05)
A new catalytic procedure for atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions is described. The combination of the ruthenium(III) complex [RuCl(2)Cp*(PPh3)] (Cp*: pentamethylcyclopentadienyl) with magnesium allows these reactions to be performed under mild conditions with high efficiency. In most
Ultrafine spinel powders by flame spray pyrolysis of a magnesium aluminum double alkoxide.
Bickmore CR, et al.
Journal of the American Chemical Society, 79(5), 1419-1423 (1996)
Jochen Halfar et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(49), 19737-19741 (2013-11-20)
Northern Hemisphere sea ice has been declining sharply over the past decades and 2012 exhibited the lowest Arctic summer sea-ice cover in historic times. Whereas ongoing changes are closely monitored through satellite observations, we have only limited data of past
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