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307742

Sigma-Aldrich

Magnesium oxide

light, 95%

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Linear Formula:
MgO
CAS Number:
Molecular Weight:
40.30
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.55

form

powder

concentration

≥57% Mg

mp

2852 °C (lit.)

anion traces

sulfite and thiosulfate (as S2O32-: ≤1%

cation traces

Fe: ≤10 mg/kg

SMILES string

O=[Mg]

InChI

1S/Mg.O

InChI key

CPLXHLVBOLITMK-UHFFFAOYSA-N

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1 of 4

This Item
24338813138342793
vibrant-m

307742

Magnesium oxide

-
vibrant-m

243388

Magnesium oxide

Essential Grade
vibrant-m

13138

Magnesium oxide

Essential Grade
vibrant-m

342793

Magnesium oxide

-
Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

anion traces

sulfite and thiosulfate (as S2O32-: ≤1%

anion traces

SO42- and SO32-: ≤0.02%, chloride (Cl-): ≤0.01%, nitrate (NO3-): ≤0.005%

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤5000 mg/kg

anion traces

-

cation traces

Fe: ≤10 mg/kg

cation traces

Ba: ≤0.005%, Ca: ≤0.05%, Fe: ≤0.01%, K: ≤0.005%, Mn: ≤5 ppm, Na: ≤0.5%, Sr: ≤0.005%, heavy metals (as Pb): ≤0.003%

cation traces

As: ≤2 mg/kg, Ca: ≤1%, Cu: ≤10 mg/kg, Fe: ≤200 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg

cation traces

-

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)

concentration

≥57% Mg

concentration

-

concentration

-

concentration

-

General description

Magnesium oxide (MgO) is an industrially important high-temperature material. It is widely employed as a catalyst support for carbon nanotubes since it possesses a high surface area, high temperature stability and easy removal by either acid or alkaline reagents.

Application

Magnesium oxide (MgO) may be employed in the synthesis of bimetallic Co-Mo catalysts supported on different catalyst supports. These catalysts were used for single-walled carbon nanotube (SWCNT) synthesis.
It may be employed as a phase stabilizer during the fabrication of porous β-tricalcium phosphate (β-TCP).
Lithium-doped magnesium oxide (Li/MgO) may be employed for the synthesis of ethylene and ethane. It may also be used as a catalyst in the preparation of (R)-phenyl carbonate.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Eagleson M.
Concise Encyclopedia Chemistry, 495-495 (1994)
Effect of different catalyst supports on the (n, m) selective growth of single-walled carbon nanotube from Co-Mo catalyst.
Wang B, et al.
J. Mater. Sci., 44(12), 3285-3295 (2009)
Fabrication of β-TCP foam: Effects of magnesium oxide as phase stabilizer on its properties.
Nikaido T, et al.
Ceramics International, 41(10), 14245-14250 (2015)
Synthesis of ethylene and ethane by partial oxidation of methane over lithium-doped magnesium oxide.
Ito T and Lunsford JH.
Nature, 721-722 (1985)
Magnesium oxide-catalysed reaction of carbon dioxide with an epoxide with retention of stereochemistry.
Yano T, et al.
Chemical Communications (Cambridge, England), 12, 1129-1130 (1997)

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