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96454

Sigma-Aldrich

Zinc

purum, powder

Synonym(s):

Zn

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About This Item

Empirical Formula (Hill Notation):
Zn
CAS Number:
7440-66-6
Molecular Weight:
65.39
MDL number:
MFCD00011291
UNSPSC Code:
12161600
PubChem Substance ID:
329770507
NACRES:
NA.22
Pricing and availability is not currently available.

vapor pressure

1 mmHg ( 487 °C)

Quality Level

200

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

Related Categories

Application

Zinc powder is generally used as a reagent for the Clemmensen reduction of ketones.[1]
It can also be used as a:
  • Reducing agent in the preparation of graphene from graphene oxide using ultrasonication method.[2]
  • Reducing agent in the oxidation of benzene to phenol by vanadium substituted heteropolyacid catalyst and oxygen oxidant.[3]
  • Reactant in the preparation of alkyl zinc reagents by direct insertion of zinc powder into unactivated alkyl bromides and chlorides.[4]
  • Catalyst in selective Fries rearrangement of acetylated phenols.[5]

Other Notes

Reagent for the Clemmensen reduction of ketones and the Reformansky reaction[6][7]

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H410

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7126
BCCL6958
BCCL5051
BCCJ1335
BCCJ1336

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Zinc

Selective Fries rearrangement catalyzed by zinc powder.
Paul S and Gupta M
Synthesis, 2004(11), 1789-1792 (2004)
M.W. Rathke
Org. React., 22, 423-423 (1975)
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)
Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature.
Mei X and Ouyang J
Carbon, 49(15), 5389-5397 (2011)
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)
View All Related Papers

Questions

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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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