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241741

Sigma-Aldrich

Copper(II) oxide

ACS reagent, ≥99.0%

Sinonimo/i:

Cupric oxide

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CHF 121.00

About This Item

Formula empirica (notazione di Hill):
CuO
Numero CAS:
Peso molecolare:
79.55
Numero CE:
Numero MDL:
Codice UNSPSC:
12352303
ID PubChem:
NACRES:
NA.21

CHF 121.00


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Grado

ACS reagent

Livello qualitativo

Saggio

≥99.0%

Stato

powder

Impiego in reazioni chimiche

reagent type: catalyst
core: copper

Impurezze

Free alkali, passes test
≤0.002% N compounds
≤0.01% C compounds
≤0.02% S compounds
≤0.02% insol. dil. HCl

Anioni in tracce

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.02%

Cationi in tracce

Ca: ≤0.01%
Fe: ≤0.05%
K: ≤0.02%
Na: ≤0.05%

Stringa SMILE

[Cu]=O

InChI

1S/Cu.O
QPLDLSVMHZLSFG-UHFFFAOYSA-N

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Descrizione generale

Copper (II) oxide is one of the two stable oxides of copper. Cupric oxide is a precursor to many copper-containing products and chemicals. It is used as a pigment, fungicide, and antirust protection agent for marine paints. CuO possesses notable and admirable characteristics like abundance and affordability, ease of manufacturing, scalability, non-toxicity, antioxidant properties, and semiconducting characteristics.

Applicazioni

Copper (II) oxide is used:,As a catalyst in the synthesis of 2-Aryl- and 2-alkenyl-1,3,4-oxadiazoles from treating 1,3,4-oxadiazoles with aryl or alkenyl halides.

Pittogrammi

Environment

Avvertenze

Warning

Indicazioni di pericolo

Consigli di prudenza

Classi di pericolo

Aquatic Acute 1 - Aquatic Chronic 1

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Certificati d'analisi (COA)

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Questions

1–2 of 2 Questions  
  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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