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Merck

P5271

Potassium dichromate

ReagentPlus®, ≥99.5%

Sinonimo/i:

Potassium bichromate

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Informazioni su questo articolo

Formula condensata:
K2Cr2O7
Numero CAS:
7778-50-9
Peso molecolare:
294.18
Numero CE:
231-906-6
Numero MDL:
MFCD00011367
Codice UNSPSC:
12352302
ID PubChem:
329820224
NACRES:
NA.55

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Grado

reagent grade

Livello qualitativo

200

Nome Commerciale

ReagentPlus®

Saggio

≥99.5%

Stato

powder

Impiego in reazioni chimiche

reagent type: oxidant

pH

3.6 (100 g/L)

Punto di fusione

398 °C (lit.)

Solubilità

water: soluble (ca.29.4 g/l at 20 °C (68 °F))

Stringa SMILE

[K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
KMUONIBRACKNSN-UHFFFAOYSA-N

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Categorie correlate

Applicazioni

Potassium dichromate can be used as an oxidant:
  • For the oxidation of alcohols to aldehydes.
  • In the graft-polymerization of polyacrylonitrile film with polyaniline[1].
  • To synthesize oxidized nanocellulose.

Note legali

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Avvertenze

Danger

Classi di pericolo

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

Organi bersaglio

Cardio-vascular system, Respiratory system

Codice della classe di stoccaggio

5.1B - Oxidizing hazardous materials

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)

Lot/Batch Number
BCCN4621
BCCM2264
BCCL7268
BCCJ6251
BCCH2408

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Surface modification of polyacrylonitrile film by anchoring conductive polyaniline and determination of uricase adsorption capacity and activity
Bayramouglu G, et al.
Applied Surface Science, 256, 6710-6716 (2010)
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Environmental toxicology, 34(9), 1013-1024 (2019-05-17)
The freshwater green algae Closterium ehrenbergii has been considered as a model for eco-toxicological assessment in aquatic systems. Heat shock proteins (HSPs) are a class of highly conserved proteins produced in all living organisms, which participate in environmental stress responses.
Kyra T Newmaster et al.
Nature communications, 11(1), 1885-1885 (2020-04-22)
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Analysis of neuronal arborization and connections is a powerful tool in fundamental and clinical neuroscience. Changes in neuronal morphology are central to brain development and plasticity and are associated with numerous diseases. Golgi staining is a classical technique based on
Shafaqat Ali et al.
Environmental toxicology and chemistry, 32(10), 2234-2239 (2013-06-19)
A hydroponic experiment was carried out to examine the effect of hydrogen sulfide (H2 S) in alleviating chromium (Cr) stress in barley. A 2-factorial design with 6 replications was selected, including 3 levels of NaHS (0 μM, 100 μM, and
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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/418/501/product-dating-information-06-25-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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