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96454

Zinc

powder, purum

Synonyma:

Zn

Přihlásit pro zobrazení organizačních a smluvních cen.

Vybrat velikost

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Velikost baleníSkladová položkaDostupnostCena
250 g
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918,00 Kč
1 kg
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3 200,00 Kč

O této položce

Lineární vzorec:
Zn
Číslo CAS:
Molekulová hmotnost:
65.39
UNSPSC Code:
11101719
PubChem Substance ID:
NACRES:
NA.22
MDL number:

918,00 Kč


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Název produktu

Zinc, purum, powder

vapor pressure

1 mmHg ( 487 °C)

Quality Level

grade

purum

form

powder

reaction suitability

core: zinc, reagent type: catalyst

resistivity

5.8 μΩ-cm, 20°C

bp

907 °C (lit.)

mp

420 °C (lit.)

density

7.133 g/mL at 25 °C (lit.)

SMILES string

[Zn]

InChI

1S/Zn

InChI key

HCHKCACWOHOZIP-UHFFFAOYSA-N

Application

Zinc powder is generally used as a reagent for the Clemmensen reduction of ketones.
It can also be used as a:
  • Reducing agent in the preparation of graphene from graphene oxide using ultrasonication method.
  • Reducing agent in the oxidation of benzene to phenol by vanadium substituted heteropolyacid catalyst and oxygen oxidant.
  • Reactant in the preparation of alkyl zinc reagents by direct insertion of zinc powder into unactivated alkyl bromides and chlorides.
  • Catalyst in selective Fries rearrangement of acetylated phenols.

Other Notes

Reagent for the Clemmensen reduction of ketones and the Reformansky reaction

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Tato položka
243469209988565148
Zinc purum, powder

Sigma-Aldrich

96454

Zinc

Zinc granular, 20-30 mesh, ACS reagent, ≥99.8%

Sigma-Aldrich

243469

Zinc

Zinc dust, <10 μm, ≥98%

Sigma-Aldrich

209988

Zinc

Zinc granular, 30-100 mesh, 99%

Sigma-Aldrich

565148

Zinc

reaction suitability

core: zinc, reagent type: catalyst

reaction suitability

core: zinc, reagent type: catalyst

reaction suitability

core: zinc, reagent type: catalyst

reaction suitability

core: zinc, reagent type: catalyst

form

powder

form

granular

form

dust

form

granular

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

density

7.133 g/mL at 25 °C (lit.)

density

7.133 g/mL at 25 °C (lit.)

density

7.133 g/mL at 25 °C (lit.)

density

7.133 g/mL at 25 °C (lit.)

mp

420 °C (lit.)

mp

420 °C (lit.)

mp

420 °C (lit.)

mp

420 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)

bp

907 °C (lit.)


pictograms

Environment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Skladovací třída

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Osvědčení o analýze (COA)

Lot/Batch Number

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Navštívit knihovnu dokumentů



One-pot reductive cleavage of exo-olefin to methylene with a mild ozonolysis-Clemmensen reduction sequence.
Xu S, et al.
Tetrahedron Letters, 51(34), 4534-4537 (2010)
Selective Fries rearrangement catalyzed by zinc powder.
Paul S and Gupta M
Synthesis, 2004(11), 1789-1792 (2004)
Zinc powder as an effective reducing reagent during liquid-phase oxidation of benzene to phenol using molecular oxygen over V-substituted heteropoly acid catalysts.
Sumimoto S, et al.
Industrial & Engineering Chemistry Research, 45(22), 7444-7450 (2006)



Globální číslo obchodní položky

Skladová položkaGTIN
96454-1KG04061835564002
96454-250G04061835555659

Questions

1–3 of 3 Questions  
  1. What is the particle size of this Zn powder?

    1 answer
    1. The particle size of this product is not determined. However, historical data indicates a range of 6-9 microns.

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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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  3. 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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