13112
Magnésium
powder, ≥99%
Synonyme(s) :
Magnesium element
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A propos de cet article
Formule empirique (notation de Hill) :
Mg
Numéro CAS:
Poids moléculaire :
24.31
NACRES:
NA.22
PubChem Substance ID:
eCl@ss:
38110201
UNSPSC Code:
12141502
EC Number:
231-104-6
MDL number:
Beilstein/REAXYS Number:
4948473
Assay:
≥99%
Form:
powder
Service technique
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1 mmHg ( 621 °C)
Quality Level
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
Application
Magnesium (powder) can be used as a reducing agent to synthesize:
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.
- 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
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signalword
Danger
hcodes
Classe de stockage
4.2 - Pyrophoric and self-heating hazardous materials
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Classifications
Flam. Sol. 1 - Self-heat. 1 - Water-react. 2
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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
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)