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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:
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)

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

Signal Word

Danger

Hazard Statements

H228,H251,H261

Hazard Classifications

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

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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)
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
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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