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342793

Sigma-Aldrich

Magnesium oxide

≥99% trace metals basis, -325 mesh

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Linear Formula:
MgO
CAS Number:
Molecular Weight:
40.30
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

assay

≥99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: magnesium

loss

10% loss on ignition, 1000°C (absorbed H2O and CO2)

particle size

-325 mesh

mp

2852 °C (lit.)

SMILES string

O=[Mg]

InChI

1S/Mg.O

InChI key

CPLXHLVBOLITMK-UHFFFAOYSA-N

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1 of 4

This Item
13138203718549649
vibrant-m

342793

Magnesium oxide

-
vibrant-m

13138

Magnesium oxide

Essential Grade
vibrant-m

203718

Magnesium oxide

-
vibrant-m

549649

Magnesium oxide

-
assay

≥99% trace metals basis

assay

98.0-100.5% (calc. for dried substance)

assay

99.99% trace metals basis

assay

-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)

reaction suitability

reagent type: catalyst
core: magnesium

reaction suitability

reagent type: catalyst
core: magnesium

reaction suitability

reagent type: catalyst
core: magnesium

reaction suitability

-

loss

10% loss on ignition, 1000°C (absorbed H2O and CO2)

loss

≤5% loss on ignition

loss

-

loss

-

General description

Magnesium oxide is a mild basic reagent used in acylations, alkylations, oxidations, reductions, formation of heterocycles, ring-opening of tertiary amines, nitration of aromatic acetals, hydrohalogenation, dehydrohalogenation, carbonylation of organomercurials, and serves as a leaving group to form alkenes.

Application

Magnesium oxide can be used as a catalyst in the:
  • Dehydrogenation of n-octane to synthesize octenes.
  • Solvent-free Knoevenagel condensation of aromatic aldehydes and ethyl cyanoacetate to synthesize electrophilic olefins.

Analysis Note

Purity based on metallic impurity content.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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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)
Synthesis of ethylene and ethane by partial oxidation of methane over lithium-doped magnesium oxide.
Ito T and Lunsford JH.
Nature, 721-722 (1985)
Eagleson M.
Concise Encyclopedia Chemistry, 495-495 (1994)
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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Adsorbed molecules are involved in many reactions on solid surface that are of great technological importance. As such, there has been tremendous effort worldwide to learn how to predict reaction rates and equilibrium constants for reactions involving adsorbed molecules. Theoretical

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