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342793

Sigma-Aldrich

Magnesiumoxid

≥99% trace metals basis, -325 mesh

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250 G
€ 114,00
1 KG
€ 328,00

€ 114,00


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250 G
€ 114,00
1 KG
€ 328,00

About This Item

Lineare Formel:
MgO
CAS-Nummer:
Molekulargewicht:
40.30
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352303
PubChem Substanz-ID:
NACRES:
NA.21

€ 114,00


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Qualität

for analytical purposes

Assay

≥99% trace metals basis

Form

powder

Eignung der Reaktion

reagent type: catalyst
core: magnesium

Verlust

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

Partikelgröße

-325 mesh

mp (Schmelzpunkt)

2852 °C (lit.)

SMILES String

O=[Mg]

InChI

1S/Mg.O

InChIKey

CPLXHLVBOLITMK-UHFFFAOYSA-N

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Allgemeine Beschreibung

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.

Anwendung

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.

Hinweis zur Analyse

Purity based on metallic impurity content.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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Kunden haben sich ebenfalls angesehen

Slide 1 of 4

1 of 4

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

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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