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243388

Sigma-Aldrich

氧化镁

ACS reagent, 97%

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About This Item

線性公式:
MgO
CAS號碼:
分子量::
40.30
EC號碼:
MDL號碼:
分類程式碼代碼:
12352303
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent

化驗

97%

形狀

powder

反應適用性

reagent type: catalyst
core: magnesium

雜質

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

損耗

≤2.0% loss on ignition

mp

2852 °C (lit.)

負離子痕跡

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

正離子痕跡

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 字串

O=[Mg]

InChI

1S/Mg.O

InChI 密鑰

CPLXHLVBOLITMK-UHFFFAOYSA-N

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一般說明

氧化镁(MgO)是重要的高温工业材料。[1]掺锂氧化镁(Li/MgO)可用于由甲烷合成乙烯和乙烷。[2]由于具有比表区域大、高温稳定性好、酸或碱容易脱除等优点而被广泛用作碳纳米管的催化剂载体。[3]

應用

氧化镁(MgO)已用于合成不同催化剂载体负载的Co-Mo双金属催化剂。这些催化剂可用于单壁碳纳米管(SWCNT)合成。[4]
可用作制备多孔β-磷酸三钙(β-TCP)的相稳定剂。[5]
掺锂氧化镁(Li/MgO)可用于乙烯和乙烷的合成。[2]也可作为制取(R)-碳酸苯酯的催化剂。[3]

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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Arantxa García-Legorreta et al.
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Magnesium is a mineral that modulates several physiological processes. However, its relationship with intestinal microbiota has been scarcely studied. Therefore, this study aimed to assess the role of dietary magnesium content to modulate the intestinal microbiota of Wistar male rats.
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(2), 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)
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)
Eagleson M.
Concise Encyclopedia Chemistry, 495-495 (1994)

Questions

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  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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