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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

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

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
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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCL6958
BCCL5051
BCCJ1335
BCCJ1336
BCCJ5923

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Zinc

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)
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)
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)
Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature.
Mei X and Ouyang J
Carbon, 49(15), 5389-5397 (2011)
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