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342793

Sigma-Aldrich

Magnesium oxide

≥99% trace metals basis, -325 mesh

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About This Item

Linear Formula:
MgO
CAS Number:
Molecular Weight:
40.30
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.21

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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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 Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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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)
Sanket A Deshmukh et al.
Physical chemistry chemical physics : PCCP, 14(44), 15593-15605 (2012-10-19)
Atomic scale characterization of the structure and dynamics of confined water molecules located near the metal oxide-aqueous interface is carried out using molecular dynamics simulations. Proximity effects on water molecules (H(2)O) near a magnesium oxide surface (MgO(100)) at room temperature

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