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217646

Sigma-Aldrich

Manganese(IV) oxide

activated, ~85%, <10 μm

Sinônimo(s):

Manganese dioxide

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About This Item

Fórmula empírica (Notação de Hill):
MnO2
Número CAS:
1313-13-9
Peso molecular:
86.94
Número CE:
215-202-6
Número MDL:
MFCD00003463
Código UNSPSC:
12352302
ID de substância PubChem:
329752205
NACRES:
NA.21
Preço e disponibilidade não estão disponíveis no momento.

grau

for analytical purposes

Ensaio

~85%

Formulário

powder

tamanho de partícula

<10 μm

pf

535 °C (dec.) (lit.)

cadeia de caracteres SMILES

O=[Mn]=O

InChI

1S/Mn.2O

chave InChI

NUJOXMJBOLGQSY-UHFFFAOYSA-N

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Descrição geral

Manganese (IV) oxide is a low cost, low toxic and easy handling inorganic compound widely used as a mild oxidant in organic chemistry. It is mainly used for the selective oxidation of activated alcohols to form α, β-unsaturated aldehydes and ketones.

Aplicação

Manganese (IV) oxide can be used as selective oxidizing agent:
  • In conversion of allylic alcohols to α, β-ethylenic esters or amides.
  • In oxidation of allylic alcohols to α,β-ethylenic aldehydes or ketones.
  • In oxidation of propargylic alcohols, saturated alcohols and benzylic or heterocyclic alcohols.
  • Manganese (IV) oxide can also be used:,In hydration of nitriles to amides.

Pictogramas

Health hazardExclamation mark
GHS08,GHS07

Palavra indicadora

Warning

Frases de perigo

H302 + H332,H373

Classificações de perigo

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

Órgãos-alvo

Brain

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

does not flash

Ponto de fulgor (°C)

does not flash

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Certificados de análise (COA)

Lot/Batch Number
MKCT8463
MKCP1516
MKCP0202
MKCQ1880
MKCL5035

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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

      Helpful?

  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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