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243388

Magnesium oxide

ACS reagent, 97%

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Size/SKUAvailabilityPrice
25 g

Available to ship onSeptember 02, 2026fromMILWAUKEE

$77.50
100 g

Available to ship onSeptember 02, 2026fromMILWAUKEE

$150.00
$127.50
500 g

Available to ship onSeptember 02, 2026fromMILWAUKEE

$658.00

About This Item

Linear Formula:
MgO
CAS Number:
Molecular Weight:
40.30
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-171-9
MDL number:
Assay:
97%
Grade:
ACS reagent
Form:
powder

$77.50


Available to ship onSeptember 02, 2026Details


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grade

ACS reagent

Quality Segment

assay

97%

form

powder

reaction suitability

reagent type: catalyst
core: magnesium

impurities

≤0.02% NH4OH pptd., ≤0.02% insol. dil. HCl, ≤0.4% water soluble substances

loss

≤2.0% loss on ignition

mp

2852 °C (lit.)

anion traces

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

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%

SMILES string

O=[Mg]

InChI

1S/Mg.O

InChI key

CPLXHLVBOLITMK-UHFFFAOYSA-N

General description

Magnesium oxide (MgO) is an industrially important high-temperature material. Lithium-doped magnesium oxide (Li/MgO) may be employed for the synthesis of ethylene and ethane from methane. 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) has been 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.

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This Item
13742816308963089
description

ACS reagent, 97%

description

United States Pharmacopeia (USP) Reference Standard

description

BioUltra, ≥97.0% (calcined substance, KT)

description

BioUltra, ≥97.0% (calcined substance, KT)

form

powder

form

-

form

-

form

-

assay

97%

assay

-

assay

≥97.0% (calcined substance, KT)

assay

≥97.0% (calcined substance, KT)

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

200

grade

ACS reagent

grade

pharmaceutical primary standard

grade

reagent grade

grade

reagent grade

cation traces

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

cation traces

-

cation traces

Cd: ≤5 mg/kg, Li: ≤50 mg/kg, Mn: ≤5 mg/kg, Ba: ≤10 mg/kg, Pb: ≤5 mg/kg, Sr: ≤20 mg/kg, Fe: ≤50 mg/kg, Na: ≤2000 mg/kg, Zn: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg, Al: ≤20 mg/kg, Mo: ≤5 mg/kg, Co: ≤5 mg/kg, As: ≤0.1 mg/kg, K: ≤50 mg/kg, Cu: ≤5 mg/kg, Bi: ≤10 mg/kg, Ca: ≤500 mg/kg

cation traces

Cd: ≤5 mg/kg, Li: ≤50 mg/kg, Mn: ≤5 mg/kg, Ba: ≤10 mg/kg, Pb: ≤5 mg/kg, Sr: ≤20 mg/kg, Fe: ≤50 mg/kg, Na: ≤2000 mg/kg, Zn: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg, Al: ≤20 mg/kg, Mo: ≤5 mg/kg, Co: ≤5 mg/kg, As: ≤0.1 mg/kg, K: ≤50 mg/kg, Cu: ≤5 mg/kg, Bi: ≤10 mg/kg, Ca: ≤500 mg/kg

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2852 °C (lit.)


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Storage Class

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Questions

1–3 of 3 Questions  
  1. what is the particle sizes ?

    1 answer
    1. The particle size for this product has not been determined and is not specified.

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  2. 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/418/501/product-dating-information-06-25-mk.pdf

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  3. 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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