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重要文件

217646

Sigma-Aldrich

二氧化锰

activated, ~85%, <10 μm

同義詞:

二氧化锰

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About This Item

經驗公式(希爾表示法):
MnO2
CAS號碼:
分子量::
86.94
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21
暫時無法取得訂價和供貨情況

品質等級

化驗

~85%

形狀

powder

粒徑

<10 μm

mp

535 °C (dec.) (lit.)

SMILES 字串

O=[Mn]=O

InChI

1S/Mn.2O

InChI 密鑰

NUJOXMJBOLGQSY-UHFFFAOYSA-N

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相關類別

一般說明

锰(IV)氧化物是一种低成本、低毒、易处理的无机化合物,在有机化学中被广泛用作温和氧化剂。它主要用于活性醇的选择性氧化,以生成 α, β-不饱和醛和酮。

應用

锰(IV)氧化物可作为选择性氧化剂用于:
  • 将烯丙醇转化为 α, β-乙烯酯或酰胺。
  • 将烯丙醇氧化成 α,β-乙醛或酮。
  • 丙炔醇、饱和醇和苯基或杂环醇的氧化。
  • 锰(IV)氧化物也可用于:腈到酰胺的水合。

象形圖

Health hazardExclamation mark

訊號詞

Warning

危險聲明

危險分類

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Inhalation

標靶器官

Brain

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

does not flash

閃點(°C)

does not flash


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分析證明 (COA)

Lot/Batch Number

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  1. 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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  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/449/386/product-dating-information-mk.pdf

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