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13112

Magnesium

powder, ≥99%

Synonym(s):

Magnesium element

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About This Item

Linear Formula:
Mg
CAS Number:
7439-95-4
Molecular Weight:
24.31
NACRES:
NA.22
PubChem Substance ID:
57647054
eCl@ss:
38110201
UNSPSC Code:
12141502
EC Number:
231-104-6
MDL number:
MFCD00085308
Beilstein/REAXYS Number:
4948473
Assay:
≥99%
Form:
powder
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vapor pressure

1 mmHg ( 621 °C)

Quality Segment

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

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

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pictograms

Flame
GHS02

signalword

Danger

Storage Class

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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