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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:
Molecular Weight:
65.39
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

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

pictograms

Environment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature.
Mei X and Ouyang J
Carbon, 49(15), 5389-5397 (2011)
M.W. Rathke
Org. React., 22, 423-423 (1975)

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